{"title":"Amplifier","description":null,"products":[{"product_id":"b866-1-xlr-split-horizontal-parallel-distributor-1-input-and-6-output","title":"B866 1 XLR Split Horizontal Parallel Distributor, 1 Input and 6 Output","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. LINEPAUDIO 1 in and out XLR Distributor horizontal parallel Distributor when you need to divide line level signal into 6 routes, please use this product to solve your device separation problem. \u003cbr\u003e2. The product inputs a XLR signal source, connects to 6 XLR interfaces, adds additional amplifiers to the equipment system, connects multiple active stereo speakers, and separates intercom lines. \u003cbr\u003e3. Input (XLR) is used to connect signal line input. The output XLR6) Jack is connected in parallel to the input line level signal, and the output can usually be separated from six interfaces without significant signal quality distortion. The actual number of partitions that can be completed depends on the level of the source signal and the impedance of the source.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Please use this convenient box when you need to divide the line level signal into six times. \u003cbr\u003e2. 1 XLR input socket in parallel to 6 XLR outputs. \u003cbr\u003e3. Additional amplifiers are added to the system to connect a plurality of active speakers. \u003cbr\u003e4. Split up intercom lines, etc.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628775272795,"sku":"PC0219B","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0219B.jpg?v=1773965671"},{"product_id":"b855-linepaudio-phone-prephonograph-signal-amplifier-with-auxiliary-input-and-volume-control","title":"B855 LINEPAUDIO Phone Prephonograph Signal Amplifier with Auxiliary Input and Volume Control","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. The LINEPAUDIO phone preamplifier adds phonograph functionality to any amplifier or receiver with standby auxiliary level input. \u003cbr\u003e2. Prephonograph signal amplifier with AUX input and volume control, and AUX is with no signal amplification function. \u003cbr\u003e3. The Phono preamplifier adds a phonograph function to any amplifier or receiver having standby AUX \/ CD \/ DVD audio line level input. \u003cbr\u003e4. It can also be used to drive the disc directly into a mixer or a computer sound card. With its precise RIAA balance and 80 dB S \/ N ratio, the product can also be used to input the turntable directly into the sound system of the mixer or a computer. In order to switch auxiliary input to replace stereo or computer use, eliminating the need of connect and disconnect of the source signal as well as the sharing connection of the product. The sound quality of the preamplifier is easy to match or exceed the sound quality of the phonograph preamplifier built into a high-quality stereo component. \u003cbr\u003e5. Product configuration switch function selects AUX input instead of stereo or AUX input port occupied on the computer. There is no need to connect or disconnect a shared input signal source of the product. \u003cbr\u003e6. The output level control is very convenient to use the sound card and allows for the elimination of the largest signal difference between the switched signal sources.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. High quality RIAA phonograph preamplifier, for use with dynamic magnetic type jukebox. \u003cbr\u003e2. Accurate and stable integrated circuit design. \u003cbr\u003e3. Gold-plated head input and output connection RCA port, reliable performance. \u003cbr\u003e4. Stylish, sturdy metal case to increase resistance of electrical noise. \u003cbr\u003e5. The output level control allows the volume to be adjusted to provide signals from other sources. \u003cbr\u003e6. Distortion ratio: 0.06% (max). \u003cbr\u003e7. The frequency response is: + \/ -0.5dB, 20Hz - 20kHz. \u003cbr\u003e8. Phonograph input impedance: Phono: 47K ohm - 200pF nominal. \u003cbr\u003e9. Line input impedance: AUXL: 10K ohm. \u003cbr\u003e10. Output impedance: 200 ohms. \u003cbr\u003e11. Channel separation: 50dB. \u003cbr\u003e12. Voice: 40dB (Phono) arbitrary signal source. \u003cbr\u003e13. Phono sensitivity: 3.3MV. \u003cbr\u003e14. Output: 300MV. \u003cbr\u003e15. SNR: 85 dB. \u003cbr\u003e16. Power supply: DC 12V 1A.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628784185691,"sku":"PC0218B","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0218B.jpg?v=1773966447"},{"product_id":"b066-mini-stereo-8-channel-rca-non-source-sound-passive-mixer-no-power-supply-8-channel-rca","title":"B066 Mini Stereo 8 Channel RCA Non Source Sound Passive Mixer, No Power Supply, 8 Channel RCA","description":"1. Mini type stereophonic non source sound mixture is one type stereophonic 8 ways non source sound mixing box\u003cbr\u003e2. Use to expand the equipment interface to realize the tone tuning, sound mixture musical instrument, CD player, tape player, computer, mobile phone and PAD, etc.\u003cbr\u003e3. Needn’t additionally connect power supply, 8 sets stereophonic input with independent volume adjustment switch. Output 2 sets select shift switch.\u003cbr\u003e4. Sound mixture output able to connect tone tuning table, prepose amplifier, power amplifier and source loudspeaker box, etc.\u003cbr\u003e5. Simple installation: input and output, able to be used once inserted, convenient to install, input and output signal no consumption, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter: \u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Color: Black\u003cbr\u003e3. Interface: RCA interface\u003cbr\u003e4. Power supply: Not need additionally connect power supply, able to be used once inserted\u003cbr\u003e5. 8 sets stereophonic input with independent volume adjustment\u003cbr\u003e6. 2 sets stereophonic select output with switch shift output (select 1 in 2 to output)\u003cbr\u003e7. Input impedance: 10Kohms - 47Kohms\u003cbr\u003e8. Output impedance: 2.5Kohms - 10Kohms\u003cbr\u003e9. Output gain: -12dB (Connect power amplifier\\prepose amplifier\\tone tuning table\\source loudspeaker after sound mixed)\u003cbr\u003e10. Single product net weight: 0.42kg\u003cbr\u003e11. Product size: length 172mm x width 68mm x height 38mm","brand":"GadgetHQ","offers":[{"title":"8 Channel RCA","offer_id":52628797030747,"sku":"SYA0017952","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017952.jpg?v=1773967966"},{"product_id":"linepaudio-b896-four-channel-sassive-mixer","title":"LINEPAUDIO B896 Four-channel Sassive Mixer","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. Mini passive stereo mixer is a stereo four-way passive mixer for extended control tuning, mixing instrument, CD player, tape player, computer, mobile phone, tablet and so on. No battery or other power source required. The device can also be used as 1 In 4 Out stereo distributor clockwise to adjust the volume. \u003cbr\u003e2. OUTPUT: is used to connect RCA jack to mixer output or other output devices. \u003cbr\u003e3. IN 1-4: controls the signal level from input 1-4. \u003cbr\u003e4. 4 groups of stereo RCA input and 1 group of stereo RCA output. \u003cbr\u003e5. Four independently regulated 100K ohms potentiometers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeature\u003c\/b\u003e\u003cbr\u003e1. Input impedance: 10K ohms to 47K ohms \u003cbr\u003e2. Output impedance: 2.5K ohms to 10K ohms \u003cbr\u003e3. Gain: -12dB  MAX\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628798931291,"sku":"PC0321B","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0321B.jpg?v=1773968140"},{"product_id":"b012-professional-stereo-signal-converted-to-microphone-balanced-signal-output","title":"B012 Professional Stereo Signal Converted to Microphone Balanced Signal Output","description":"B012 – Professional Stereo Signal Converted to Microphone Balanced Signal Output \u003cbr\u003eProduct description:\u003cbr\u003eProfessional 3.5mm interface stereo signal is converted to microphone balanced signal XLR interface, the product is equipped with an earthing switch to eliminate current humming noise. The product converts level signal from lines of audio equipment, such as laptop, MP3 player, CD players, mobile phones, and tablets, to a microphone balanced mixed signal output of left and right channels. The product has a regulatory function of volume control of level signal, 1\/8” (3.5mm) TRS male input and 3-pin XLR male output.\u003cbr\u003eProduct parameters: \u003cbr\u003e◆Independent unit converts audio device level signal input to microphone balanced signal XLR output\u003cbr\u003e◆Output with independent level volume regulatory control switch\u003cbr\u003e◆3.5mm male input and XLR male output, line length: 150M\u003cbr\u003e◆The product adopts a high-performance transformer to eliminate voltage loop noise and reduce line noise\u003cbr\u003e◆Compact metal case, which is suitable for performing tour, bringing wonderful sound for your numerous performances\u003cbr\u003e◆Net weight: 0.23kg\u003cbr\u003e◆Gross weight with packaging: 0.33kg\u003cbr\u003e◆Product size: length 102mm X width 35mm X height 29mm\u003cbr\u003e◆Packaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list:\u003cbr\u003e1 X Professional stereo signal converted to microphone balanced signal output","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628799422811,"sku":"SYA005792","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005792.jpg?v=1773968218"},{"product_id":"b026-6-input-2-output-or-2-input-6-output-audio-signal-source-selection-switcher-rca-port","title":"B026 6 Input 2 Output Or 2 Input 6 Output Audio Signal Source Selection Switcher RCA Port","description":"B026 – 6 Input 2 Output Or 2 Input 6 Output Audio Signal Source Selection Switcher RCA Port\u003cbr\u003eProduct description:\u003cbr\u003e6 input 2 output or 2 output 6 input stereo audio signal selection switcher, with RCA port design\u003cbr\u003eThe produce adopts passive design, with direct insertion, and has lossless switched transmission of input and output signals,\u003cbr\u003eThe product is mainly used to select and switch among a variety of stereo signal input and output through a common set or multiple sets of equipment, that is, a variety of stereo signal sources of devices, such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, need to be output on the amplifier or on active speakers,\u003cbr\u003eThe 6-channel audio signal selection switcher solves complicated line plug in and plug out, which uniformly connects device input signal sources to the switcher for easily selection.\u003cbr\u003eThe product uses standard RCA port design for input and output, and uses precise 6-level and 2-level manual switch design for the switcher, \u003cbr\u003eProduct parameters:\u003cbr\u003ePower supply: passive design, direct insertion\u003cbr\u003eMaterial: all-metal case\u003cbr\u003eInput and output impedance: 10KΩ - 50KΩ\u003cbr\u003eFrequency response: 20 – 20 kHz\u003cbr\u003eDistortion: \u0026lt;0.002%\u003cbr\u003eInsertion loss: \u0026lt;0.01dB\u003cbr\u003eSignal gain: 0dB\u003cbr\u003eSignal to noise ratio S\/N: \u0026gt;98dB\u003cbr\u003eInput port: standard RCA port\u003cbr\u003eOutput port: standard RCA port\u003cbr\u003eNumber of input channels: 6-channel stereo input (reverse 6-channel switched output)\u003cbr\u003eNumber of output channels: 2-channel stereo output (reverse 2-channel switched input)\u003cbr\u003eControl switch: 6-level and 2-level precise manual selection switch\u003cbr\u003eInput switching channel: 6 channels\u003cbr\u003eOutput switching channel: 2 channels\u003cbr\u003eNet weight: 0.26 kg\u003cbr\u003eGross weight with packaging: 0.37 kg\u003cbr\u003eProduct size: length 122 mm X width 50 mm X height 38 mm\u003cbr\u003ePackaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list: \u003cbr\u003e1 X 6 input 2 output or 2 input 6 output stereo audio signal selection switcher RCA port\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628799979867,"sku":"SYA005798","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005798.jpg?v=1773968257"},{"product_id":"b016-6-input-1-output-audio-signal-source-selection-switcher-output-volume-adjustment-control-rca-port-6-input-1-output","title":"B016 6 Input 1 Output Audio Signal Source Selection Switcher, Output Volume Adjustment Control RCA Port, 6 Input 1 Output","description":"B016 – 6 Input 1 Output Audio Signal Source Selection Switcher, Output Volume Adjustment Control RCA Port\u003cbr\u003eProduct description:\u003cbr\u003e6-channel stereo audio signal selection switcher with output volume adjustment function,\u003cbr\u003eThe product adopts passive design, direct insertion, and has lossless switched transmission of input and output signals,\u003cbr\u003eThe product is mainly used to select and switch among a variety of stereo signal input and output through a common set of equipment, that is, a variety of stereo signal sources of devices, such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, need to be output on the amplifier or on active speakers,\u003cbr\u003eThe 6-channel audio signal selection switcher solves complicated line plug in and plug out, which uniformly connects device input signal sources to the switcher for easily selection.\u003cbr\u003eThe product uses standard RCA port design for input and output, and uses precise 6-level manual switch design for the switcher, with independent stereo volume adjustment control.\u003cbr\u003eProduct parameters:\u003cbr\u003ePower supply: passive design, direct insertion\u003cbr\u003eMaterial: all-metal case\u003cbr\u003eInput and output impedance: 10KΩ - 50KΩ\u003cbr\u003eFrequency response: 20 – 20kHz\u003cbr\u003eDistortion: \u0026lt;0.002%\u003cbr\u003eInsertion loss: \u0026lt;0.01dB\u003cbr\u003eSignal gain: 0dB\u003cbr\u003eSignal to noise ratio S\/N: \u0026gt;98dB\u003cbr\u003eInput port: standard RCA port\u003cbr\u003eOutput port: standard RCA port\u003cbr\u003eNumber of input channels: 6-channel stereo input signal sources\u003cbr\u003eNumber of output channels: 1-channel stereo output\u003cbr\u003eControl switch: 6-level precise manual selection switch\u003cbr\u003eSwitching channel: 6 channels\u003cbr\u003eNet weight: 0.25 kg\u003cbr\u003eGross weight with packaging: 0.35 kg\u003cbr\u003eProduct size: length 113 mm X width 50 mm X height 38mm\u003cbr\u003ePackaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list:\u003cbr\u003e1 X 6 input 1 output stereo audio signal selection switcher, output volume adjustment RCA port\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"6 Input 1 Output","offer_id":52628824523099,"sku":"SYA005796","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005796.jpg?v=1773969101"},{"product_id":"b027-6-input-2-output-or-2-input-6-output-audio-signal-source-selection-switcher-3-5mm-interface","title":"B027 6 input 2 output or 2 input 6 output audio signal source selection switcher 3.5mm interface","description":"B027 – 6 input 2 output or 2 input 6 output audio signal source selection switcher 3.5mm interface\u003cbr\u003eProduct description:\u003cbr\u003e6 input 2 output or 2 output 6 input stereo audio signal selection switcher, with RCA port design\u003cbr\u003eThe produce adopts passive design, with direct insertion, and has lossless switched transmission of input and output signals,\u003cbr\u003eThe product is mainly used to select and switch among a variety of stereo signal input and output through a common set or multiple sets of equipment, that is, a variety of stereo signal sources of devices, such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, need to be output on the amplifier or on active speakers,\u003cbr\u003eThe 6-channel audio signal selection switcher solves complicated line plug in and plug out, which uniformly connects device input signal sources to the switcher for easily selection.\u003cbr\u003eThe product uses standard 3.5mm interface design for input and output, and uses precise 6-level and 2-level manual switch design for the switcher, \u003cbr\u003eProduct parameters:\u003cbr\u003ePower supply: passive design, direct insertion\u003cbr\u003eMaterial: all-metal case\u003cbr\u003eInput and output impedance: 10KΩ - 50KΩ\u003cbr\u003eFrequency response: 20 – 20 kHz\u003cbr\u003eDistortion: \u0026lt;0.002%\u003cbr\u003eInsertion loss: \u0026lt;0.01dB\u003cbr\u003eSignal gain: 0dB\u003cbr\u003eSignal to noise ratio S\/N: \u0026gt;98dB\u003cbr\u003eInput port: standard 3.5mm interface\u003cbr\u003eOutput port: standard 3.5mm interface\u003cbr\u003eNumber of input channels: 6-channel stereo input (reverse 6-channel switched output)\u003cbr\u003eNumber of output channels: 2-channel stereo output (reverse 2-channel switched input)\u003cbr\u003eControl switch: 6-level and 2-level precise manual selection switch\u003cbr\u003eInput switching channel: 6 channels\u003cbr\u003eOutput switching channel: 2 channels\u003cbr\u003eNet weight: 0.28 kg\u003cbr\u003eGross weight with packaging: 0.39 kg\u003cbr\u003eProduct size: length 122 mm X width 54 mm X height 39 mm\u003cbr\u003ePackaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list: \u003cbr\u003e1 X 6 input 2 output or 2 input 6 output stereo audio signal selection switcher 3.5mm interface","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628827013467,"sku":"SYA005799","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005799.jpg?v=1773969138"},{"product_id":"b015-front-stereo-signal-amplifier-booster-headphones-speaker-amplifier-headset-dual-audio-source-b015","title":"B015 Front Stereo Signal Amplifier Booster Headphones Speaker Amplifier Headset Dual-Audio Source, B015","description":"B015 – Front Stereo Signal Amplifier Booster Headphones Speaker Amplifier Headset Dual-Audio Source\u003cbr\u003eProduct description:\u003cbr\u003eYou have a line level signal source (TV audio, MP3 player, Video game, mobile phone, tablet, computer, record player), but desire louder sound or bigger volume?\u003cbr\u003eA powerful signal amplifier receiver or volume control, you may need a long line connecting TV audio and the receiver on the other side of the room to provide high gain through any line level signal source, allowing longer cable operation or requiring “buffer” to amplify the lower volume. You may use it between the line level signal source and power amplifier as a signal amplifier, 3.5mm + RCA port matches almost all product interfaces.\u003cbr\u003eThe product improves the sound amplification and reduces ground noise by controlling the signal, and it has large dynamic range without produce cracking. It controls output volume through a sensitive volume knob, the output of the headphone interface can drive 16Ω-600Ω headsets, and uses AC9V transformer for power supply to ensure full power.\u003cbr\u003eProduct parameters:\u003cbr\u003eInput impedance: 100K Ohm\u003cbr\u003eMaximum input level: +14 dBV\u003cbr\u003eOutput impedance: 47 Ohm of each output channel\u003cbr\u003eFrequency response: 20 Hz – 20K Hz\u003cbr\u003eSignal to noise ratio: \u0026gt; 107dB\u003cbr\u003eTotal harmonic distortion: \u0026lt; 0.08%\u003cbr\u003eIntermodulation distortion: \u0026lt; 0.01%\u003cbr\u003eInput port: stereo 3.5mm socket and RCA port\u003cbr\u003eOutput port: stereo 3.5mm port and RCA port\u003cbr\u003ePower supply: AC9V\u003cbr\u003eNet weight: 0.51 kg\u003cbr\u003eGross weight with packaging: 0.61 kg\u003cbr\u003eProduct size: length 109 mm X width 79 mm X height 39 mm\u003cbr\u003ePackaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list:\u003cbr\u003e1 X stereo signal preamplifier booster dual-audio source headphone amplifier\u003cbr\u003e1 X AC9V power adapter (AWG) line length 100cm","brand":"GadgetHQ","offers":[{"title":"B015","offer_id":52628830257499,"sku":"SYA005795","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005795.jpg?v=1773969428"},{"product_id":"b017-6-input-1-output-audio-signal-selection-switcher-output-volume-adjustment-control-3-5mm-interface","title":"B017 6 Input 1 Output Audio Signal Selection Switcher Output Volume Adjustment Control 3.5mm Interface","description":"B017 – 6 Input 1 Output Audio Signal Selection Switcher Output Volume Adjustment Control 3.5mm Interface\u003cbr\u003eProduct description:\u003cbr\u003e6-channel stereo audio signal selection switcher with output volume adjustment function,\u003cbr\u003eThe product adopts passive design, direct insertion, and has lossless switched transmission of input and output signals,\u003cbr\u003eThe product is mainly used to select and switch among a variety of stereo signal input and output through a common set of equipment, that is, a variety of stereo signal sources of devices, such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, need to be output on the amplifier or on active speakers,\u003cbr\u003eThe 6-channel audio signal selection switcher solves complicated line plug in and plug out, which uniformly connects device input signal sources to the switcher for easily selection.\u003cbr\u003eThe product uses standard 3.5mm interface design for input and output, and uses precise 6-level manual switch design for the switcher, with independent stereo volume adjustment control.\u003cbr\u003eProduct parameters:\u003cbr\u003ePower supply: passive design, direct insertion\u003cbr\u003eMaterial: all-metal case\u003cbr\u003eInput and output impedance: 10KΩ - 50KΩ\u003cbr\u003eFrequency response: 20 – 20kHz\u003cbr\u003eDistortion: \u0026lt;0.002%\u003cbr\u003eInsertion loss: \u0026lt;0.01dB\u003cbr\u003eSignal gain: 0dB\u003cbr\u003eSignal to noise ratio S\/N: \u0026gt;98dB\u003cbr\u003eInput port: standard 3.5mm interface\u003cbr\u003eOutput port: standard 3.5mm interface\u003cbr\u003eNumber of input channels: 6-channel stereo input signal sources\u003cbr\u003eNumber of output channels: 1-channel stereo output\u003cbr\u003eControl switch: 6-level precise manual selection switch\u003cbr\u003eSwitching channel: 6 channels\u003cbr\u003eNet weight: 0.26 kg\u003cbr\u003eGross weight with packaging: 0.36 kg\u003cbr\u003eProduct size: length 109mm X width 54 mm X height 40 mm\u003cbr\u003ePackaging size: length 185mm X width 135mm X height 65mm\u003cbr\u003eKit list:\u003cbr\u003e1 X 6 input 1 output stereo audio signal selection switcher output volume adjustment 3.5mm interface\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628830585179,"sku":"SYA005797","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA005797.jpg?v=1773969465"},{"product_id":"a933-mini-karaoke-machine-system-sound-mixer-amplifier-for-pc-tv-mobile-phones-support-rca-in-2-channel-mic-in-a933","title":"A933 Mini Karaoke Machine System Sound Mixer Amplifier for PC \/ TV \/ Mobile Phones, Support RCA in \/ 2 Channel Mic in, A933","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003eAre you still using common headset to chat and sing on computer? Are you still directly inserting the microphone to sing on computer? Are you still having a headache for a good sound card? Are you still bothered by having no good singing device, although you are born with a good voice? The product adopts the top reverb chip, perfectly supports double chorus, independent control and user-friendly feature, manually regulates the voice volume, designs the universal RCA jack without drive, the aluminum alloy CNC shell has better shielding performance. The product integrates 6 features, with the most professional Karaoke device system:  \u003cbr\u003e1. The first powerful function: Professional reverb: an ordinary sound card has no reverb effect, and it goes without saying that the song directly from a microphone without reverb is unpleasant to hear. \u003cbr\u003e2. The second powerful function: Pure KTV effects: The product not only has the reverb effect, but also has the real damping tone, so that your singing tone at home is as perfect as that in KTV. \u003cbr\u003e3. The third powerful function: Audio amplification function: With A937 product, you can passionately sing at conference, stage and home.  \u003cbr\u003e4. The fourth powerful function: Connect musical instrument: With musical accompaniment, you can record and sing while playing guitar, oh year! It is absolutely a pleasure! \u003cbr\u003e5. The fifth powerful function: Shield current interference: When a common microphone or headset or other device is directly inserted to the computer, a big current sound can be heard, with the unique product design and unique power shielded line, this function can filter out very pure sound, and the sound effect is comparable to the real concert.  \u003cbr\u003e6. The sixth powerful function: Independent control function: You can independently control the accompaniment volume and let you sing with ease.  \u003cbr\u003eA933 is a multi-functional analog sound console, more than merely a microphone effector, it is also a preamplifier system, Karaoke or reverberator, and the powerful hardware special reverb effect not only plays the music on computer or other audio player, but also allows you to hear the perfect combination of your voice and music like a professional singer. In addition, the product also enables mixing, reverb, delay, reverb volume regulation and other functions of professional sound console. In this way, you can easily become the DJ of yourself, make independent control, mellow bass, exercise your affection and understanding to music to the fullest, without delay, without noise, the sound will be clean and transparent, or mellow and charming! The unique middle and high-end microphone optimized design which is popular in the market will perfectly fulfill your degree of professionalism.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Support reverb, mix, echo, delay and other Karaoke special effects. \u003cbr\u003e2. Use external power supply, universal power supply DC12V. \u003cbr\u003e3. Support pure recording or mixing, alternatively used for independent PC or family recording connection device. \u003cbr\u003e4. Support a variety of sound cards (PC integrated sound card, external independent USB sound card). \u003cbr\u003e5. Support two sets of microphone input (6.3mm TRS), enable the simultaneous double singing function. \u003cbr\u003e6. Support a set of output (headphone or speaker). \u003cbr\u003e7. Support high-quality microphone amplifier, support multimedia microphone, dynamic microphone, self-powered capacitor microphone. \u003cbr\u003e8. Support TS or TRS input. \u003cbr\u003e9. Two sets of control knobs, one for microphone volume, and the other for reverb volume. \u003cbr\u003e10. A set of Music in RAC stereo jacks, a set of Music out RCA stereo jacks, a set of video I\/O RCA jacks.  \u003cbr\u003e11. Audio I\/O: RCA stereo jack.  \u003cbr\u003e12. Power supply: Universal power supply DC 12V.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage List\u003c\/b\u003e\u003cbr\u003e1 x A933 Mini Karaoke sound console. \u003cbr\u003e1 x 3.5mm plug to 3.5mm plug (length: 150cm). \u003cbr\u003e2 x 3.5mm bus to RCA (length: 50cm). \u003cbr\u003e1 x 100-240V power adapter (DC 12V), American Standard, power cord length: 100cm.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A933","offer_id":52628840972635,"sku":"CMS1027B","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/CMS1027B.jpg?v=1773969961"},{"product_id":"linepaudio-a962-hifi-6j9-vacuum-tube-power-headphone-amplifier-usb-asio-sound-card-a962","title":"LINEPAUDIO A962 HiFi 6J9 Vacuum Tube Power Headphone Amplifier USB ASIO Sound Card, A962","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. LINEPAUDIO A962 fancier-level HiFi Vacuum Tube Power Headphone Amplifier PreAmp, made of Beijing classic quality 6J9-J vacuum tube, USB-PC supported ASIO sound effect software will give out more professional, full, open-stage, soft and smooth sound, especially applicable to voice, string music, light music, and classical music, the performance of different frequency points is so perfect! Fine at high frequency, strong at low frequency! Easily drive 16??-600 ?? headphone of any class, quiet background without any current background noise! Two sets of audio signal inputs, one is USB signal input (USB-PC), USB cable is connected to PC, plug and play without a drive, directly used as an upscale USB external sound card. The USB port can be also connected to any model of Android mobile phones with OTG function. The other is 3.5mm interface audio signal input and you can connect it to mobile phone, CD, lossless music player or other audio source devices. In case of simultaneous inputs of USB signal and 3.5mm interface signal, 3.5mm interface signal input is preferred.  \u003cbr\u003e2. LINEPAUDIO A962 has three sets of audio signals, simultaneously output to meet the interface of different devices (RCA\/3.5mm\/6.35mm), the output end will deliver to you a real HiFi experience, whether connected to your upscale headphone or speaker, or used as a timbre adjustable PreAmp to connect your digital power amplifier, multimedia speaker or various stereo devices, what a real PreAmp. Of course, if you want to try the timbre style of different tube amplifiers, this product can fully meet your requirement, compatible with E180F, 6688 and other tube models, you may exchange at will.  \u003cbr\u003e3. Many music fanciers are concerned about the background noise of vacuum tube headphone amplifier, but this product frees you from this concern, its performance in controlling background noise is extraordinary, the background is quiet after several tests and optimizations of the circuit design, without any current background noise, you will hear the purest, most natural, and most nostalgic sound. As to the testing of the current background noise: as it is known to all, the current background noise comes from two sources, one is the vacuum tube headphone amplifier, the other is the audio source or the audio cable (the audio cable makes it more likely to generate background noise), the correct procedure of testing the headphone amplifier is to disconnect the audio input cable, with power on, if the background of the headphone amplifier is quiet, it indicates that the headphone amplifier has a very high SNR. If unquiet, or this seriously affects you from listening music, it indicates that the headphone amplifier has a very low SNR.  \u003cbr\u003e4. Notes: An electronic interference device near the desktop may also affect the SNR. For example, if the vacuum tube power amplifier is placed near a wireless router or device, it may be interfered to some extent. Enclosed by an aluminum shell, miniaturized but exquisite, the front, rear panel is precisely processed by CNC machining center, you will get a terrific handle, the ultra-small volume will not occupy your desktop space too much. More than a multi-functional upscale high-fidelity USB sound card vacuum tube headphone amplifier, it is also a beautiful desktop ornament. All letters on the machine panels are printed using expensive laser carving and will never fade off.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. 2 sets of signal inputs (USB-PC and 3.5mm input), 3.5mm input is preferred. \u003cbr\u003e2. 3 sets of stereo signal outputs: 3.5mm \/ 6.35mm \/ RCA simultaneous signal outputs, allowing you to connect different device interfaces. \u003cbr\u003e3. USB: PC Supported ASIO sound effect software (ASIO drive to be installed)  \u003cbr\u003e4. Input power: \u0026gt;=1100mW (32ohms). \u003cbr\u003e5. Matched headphone impedance: 16ohms-600ohms. \u003cbr\u003e6. Frequency response: 20 kHz - 30kHz. \u003cbr\u003e7. Support sampling rate: 16Bit - 32k Bit, 44.1kHz, 48kHz.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A962","offer_id":52628841759067,"sku":"CMS1731B","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/CMS1731B.jpg?v=1773969991"},{"product_id":"linepaudio-a966-pro-eight-channel-headphone-amplifier-headphone-distributer-signal-amplifier-a966","title":"LINEPAUDIO A966 Pro Eight-channel Headphone Amplifier  Headphone Distributer Signal Amplifier, A966","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. LINEPAUDIO A966 is a high-quality eight-channel high-power headphone amplifier which perfectly drives various high-impedance pro monitor headphones, provides the performer with quality monitor sound quality, and enables the performer to get immersed in the show and fully present his own musical work. This product not only provides the function of headphone amplifier, in order to be more user-friendly, it has a built-in intercom function at the studio-level. When the sound engineer wants to communicate with the performer in a different room, just insert the microphone (intercom microphone) to easily issue to the performer various working instructions, what the engineer jus said will be transmitted to eight headphones.  \u003cbr\u003e2. It provides eight sets of stereo channel outputs to improve the sound quality control and amplification and the background noise is small, with a wide dynamic range without sonic boom, the output sound volume of each channel is controlled by sensitivity adjustment knob, each channel can drive 16ohms-600ohms headphone, lossless in the quality without distortion. The product also provides an independent 6.5mm stereo associated input port, which can be easily connected to other devices in the studio; furthermore, it provides one-channel microphone intercom function input function, allowing for an easy intercom in the internal channel.  \u003cbr\u003e3. The circuit has OP + BUG architecture and uses AC12V transformer power supply to ensure a strong drive.  \u003cbr\u003e4. The 16ohms-600ohms high-impedance headphone can be driven through the volume regulation knob, with full sound, calm bass, clear high frequency, without any signal sonic boom. It is a headphone distributer as well as a headphone amplifier, which can easily drive the 16ohms-600ohms headphone. It has extensive applications, including band rehearsal \/studio recording\/ home entertainment\/music enjoyment\/comparison of business headphone distribution.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. 4x 6.35mm Stereo headphone output port (optionally connected to the headphone of any impedance). \u003cbr\u003e2. 4x 3.5mm Stereo headphone output port (optionally connected to the headphone of any impedance). \u003cbr\u003e3. TS 6.35mm L and R input port (optionally connected to the signal sound sources such as computer sound card or mixing console). \u003cbr\u003e4. TRS 6.35mm Stereo input port (optionally connected to the intercom such as microphone). \u003cbr\u003e5. 4 Independent channels stereo volume output control knob. \u003cbr\u003e6. Input impedance: 100KOhm. \u003cbr\u003e7. Max. input level: +14dBV. \u003cbr\u003e8. Output impedance: 47 Ohm at each output channel . \u003cbr\u003e9. Power source: AC12V. \u003cbr\u003e10. Frequency response: 20Hz - 20KHz. \u003cbr\u003e11. SNR: \u0026gt; 107dB. \u003cbr\u003e12. THD: \u0026lt; 0.08%. \u003cbr\u003e13. IMD: \u0026lt; 0.01%. \u003cbr\u003e14. Input port: Stereo 1\/4 TRS plug, L and R channel, 1\/4 TS plug. \u003cbr\u003e15. Output port: 4x 6.35mm Stereo 1\/4 headphone jack + 4x 3.5mm Stereo 1\/8 headphone jack.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A966","offer_id":52628842742107,"sku":"CMS1736B","price":112.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/CMS1736B.jpg?v=1773970018"},{"product_id":"linepaudio-a967-full-balanced-passive-preamp-active-speaker-two-channel-volume-controller-a967","title":"LINEPAUDIO A967 Full-balanced Passive PreAmp Active Speaker Two-channel Volume Controller, A967","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. LINEPAUDIO A967 Passive PreAmp Active Speak Volume Two-Channel Controller is small and compact, applicable to use with active speaker or PostAmp, supports full-balanced or single-ended signal I\/O, equipped with a switch for easily switching I\/O signal.  \u003cbr\u003e2. Infinitely picky about the sound quality, infinitely tolerant on music. Passive PreAmp Volume Controller makes the desktop simple.  \u003cbr\u003e3. Small size but great wisdom, LINEPAUDIO A967 is tiny but with a complete set of common interfaces, supports full-balanced audio signal regulation and single-ended audio signal regulation, and switches I\/O signal.  \u003cbr\u003e4. Suitable for the decoder and speaker without volume regulation, with the balanced I\/O, RCA I\/O architecture and switch function enabled. Its PreAmp will not cause a loss of signal source. In general, the audio source signals out of the decoder reproduces the original signals. The large dynamic range will not cause a quality loss, but keep the original signal source intact.  \u003cbr\u003e5. The preferred choice of active speaker, more and more music fans are not satisfied with the sound quality performance of common multimedia speakers, but rather select professional active monitor speakers. But such speakers generally don't have a volume regulation knob, but have to use with PreAmp. Most active monitor headphones are used for the desktop near-field listening, but a common HiFi PreAmp is large and occupies a large area. Moreover, most are concerned about whether the timbre of PreAmp matches the speaker or not, whether the sound effect is ideal or not.  \u003cbr\u003e6. But from now on, LINEPAUDIO A967 Two-Channel Volume Controller perfectly addresses the above two concerns, LINEPAUDIO A967 is small and compact, the internal circuit architecture design will not cause a loss of sound quality, the internal power amplifier of active speaker is enough to drive the speaker, so that you can hear the most genuine timbre and quality of the speaker, free from the need of choosing a suitable PreAmp.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Input\/Output impedance: 10Kohms - 50Kohms. \u003cbr\u003e2. Two-channel I\/O switch, RCA and Balanced XRL I\/O. \u003cbr\u003e3. Input: RCA \/ Balanced XLR (switch). \u003cbr\u003e4. Output: RCA \/ Balanced XLR (switch).\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A967","offer_id":52628843331931,"sku":"CMS1737B","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/CMS1737B.jpg?v=1773970041"},{"product_id":"nk-p90-audio-dac-decoder-fiber-coax-digital-audio-amplifier","title":"NK-P90 Audio DAC Decoder Fiber Coax Digital Audio Amplifier","description":"1. Bit depth: 16bit \/ 24bit \u003cbr\u003e2. Signal to noise ratio: 105dbB \u003cbr\u003e3. Dynamic range: 110dB \u003cbr\u003e4. Input audio: PC-USB \/ Coaxial \/ Toslink digital audio \u003cbr\u003e5. Output audio: left \/ right audio and 6.35mm headphones \u003cbr\u003e6. Input audio connector: PC-USB, Toslink, 1XRCA (coaxial) \u003cbr\u003e7. Output audio interface: 6.35mm headphones, 2XRCA (R \/ L) \u003cbr\u003e8. Size: 165x97x33mm \u003cbr\u003e9. Weight: 296 grams \u003cbr\u003e10. Working temperature: 0 degree to + 70 degree \u003cbr\u003e11. Power adapter: DC 12V 1A \u003cbr\u003e12. Accessories: host, power supply 12V 1A, fiber optic cable, printing cable, 6.35 to 3.5 headphone cable, instruction manual\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628902707547,"sku":"DMP1101","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DMP1101.jpg?v=1773971470"},{"product_id":"b822-passive-speaker-switch-2-channel-power-amplifier-audio-switch-loudspeaker-2-input-and-2-output","title":"B822 Passive Speaker Switch 2 Channel Power Amplifier Audio Switch Loudspeaker,  2 Input and 2 Output","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. The LINEPAUDIO binary passive switch comparator uses an audio crossover circuit architecture which is a combination center of a pair of speakers and two channel audio signal switch controllers. \u003cbr\u003e2. It provides you with the convenience and flexibility to listen to different loudspeakers and power amplifiers in power amplifier and speaker systems. Designed to provide your speakers with a lossless audio combination of audio amplifiers or home theater systems, the product unit features high-quality, precision manufactured loudspeaker connectors. \u003cbr\u003e3. The product can accept up to 12 specifications connecting head wire combination control, in order to harvest maximum reliability and durability. Each channel can handle 200W RMS. \u003cbr\u003e4. The product can support any conventional power amplifier or stereo receiver can drive multiple sets of speakers. There is no need to increase the external impedance matching device. \u003cbr\u003e5. Switching the output signal does not affect the sound quality and volume loss of any other sound, and can be easily combined with any device.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Listen to power amplifiers A or B through a pair of speakers. \u003cbr\u003e2. A speaker 1 or 2 is heard from one of the two power amplifiers. \u003cbr\u003e3. Compatible with all types of power amplifiers and speakers. \u003cbr\u003e4. The input \/ output receives the heavy-duty speaker wire or speaker pin wire through the terminal port. \u003cbr\u003e5. Press the speaker selection switch to the corresponding speaker 1 or speaker 2 position. \u003cbr\u003e6. Press the amplifier selection switch to the corresponding amplifier A or amplifier 2 position. \u003cbr\u003e7. Turn on your stereo device, the product does not need external power supply. \u003cbr\u003e8. Fine steel housing, compact size suitable for any system. \u003cbr\u003e9. Channel power: Up to 200W per channel. \u003cbr\u003e10. The frequency response: 10Hz to 50kHz.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629018378587,"sku":"PC0216B","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0216B.jpg?v=1773974467"},{"product_id":"b877-3-channel-personal-listener-headset-listening-mixer","title":"B877 3 Channel Personal Listener Headset Listening Mixer","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. LINEPAUDIO B877 personal listener. Designed for players who want to listen to their voices via headphones or earphones, such as their vocal and musical instruments, mainly for drummers, who need to mix click tracks with listener signals. Church choir singing and others needs to listen to the sound of their music. All 3 stereo channels personal monitor desk headphone mixer, \u003cbr\u003e2. Three input channels are outputted by 1\/4 and 1\/8 (6.5 and 3.5 mm) of headphone holes through various level controllers, and the microphone channel and device output are connected to ground switches. Easy to eliminate the current ground buzzing noise. This product is an ideal choice for live band and church musicians as well as studio musicians and singers. It has the ability to customize the main music and the voice and instrument input of musicians. Make the product become an effective and multifunctional listening device. \u003cbr\u003e3. Line input: 1\/4 TRS stereo Jack for connecting line level signal sources, such as mixer listening \/ auxiliary output, cassette player output, CD player output, and etc.  \u003cbr\u003e4. Ground connecting: Plug jumper to disconnect the chassis grounding input of microphone pin 1 and the microphone passes through. \u003cbr\u003e5. The microphone: XLR Jack is in parallel with the microphone input Jack (hardwired) for delivery to the mixer or other microphone-level input device. \u003cbr\u003e6. Microphone input: XLR balanced Jack for connecting capacitors or moving-coil microphones. \u003cbr\u003e7. Device input: 1\/4 TRS stereo Jack for connecting device or line level signals, such as guitar processors, keyboards, musical instruments, keyboards, or previous outputs of musical instruments. \u003cbr\u003e8. Mono \/ stereo jumper: Select whether the input Jack is mono or stereo. \u003cbr\u003e9. Left \/ right output: Transformer balanced XLR output from device input. \u003cbr\u003e10. hGrounding route: A plug jumper used to disconnect the chassis from the output Jack of the 1\/4 RS device.  \u003cbr\u003e11. Mono \/ stereo jumper (located below the line input): select whether the line input Jack is mono or stereo. \u003cbr\u003e12. Note: The interface of the XLR Jack under MONO mode can be used for \"Phantom Power\" which is required to connect the mixer. \u003cbr\u003e13. Headset output: 1\/4 stereo Jack and 1\/8 stereo Jack  for connecting stereo headphones or headphones. \u003cbr\u003e14. Line level: Adjust the level signal from the line input to the headphone mixing. \u003cbr\u003e15. Microphone level: Adjust the level signal from microphone input to headphone mixing. \u003cbr\u003e16. Inst. level: Adjust the level signal from inst. input to headphone mixing. \u003cbr\u003e17. The line input is connected to a 1\/4 \"stereo or mono plug.\" If the plug is 6.35mm stereo, select the mono \/ stereo jumper set by stereo. The plug is a single-ended mono channel. Select mono \/ stereo jumper settings. \u003cbr\u003e18. Microphone input is connected to a dynamic microphone or capacitive microphone via a standard XLR cable. If you are using a capacitive microphone, you need to charge it with power from the mixer connected to the microphone Jack. This Jack transmits the phantom power from the mixer to the microphone. Connect the microphone through the Jack to the mixer as needed. \u003cbr\u003e19. Instrument input is connected to the guitar preamplifier output, keyboard or any stereo or monophonic instrument signal. Select stereo or mono.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Max input level: -20 dB XLR, +40dB line, +15dB instrument. \u003cbr\u003e2. Input impedance: 50K ohms \u003cbr\u003e3. Output frequency response: 10-30kHz +\/-3dB \u003cbr\u003e4. Output impedance HDPHN: 10ohms \u003cbr\u003e5. Output impedance: 2 ea; 100ohms balanced \u003cbr\u003e6. Gain: 20 dB 1\/4 inch, 50dB XLR \u003cbr\u003e7. HDPHN frequency response: 20Hz-20kHz \u003cbr\u003e8. S\/N ratio: 90dB \u003cbr\u003e9. Power: DC 9-16V \u003cbr\u003e10. 1\/4 TRS stereo \/ mono listening input. \u003cbr\u003e11. The XLR microphone enters w\/ pass-through. \u003cbr\u003e12. 1\/4 TRS stereo instrument input, 6.35mm \/ 3.5mm stereo \/ mono output.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629018870107,"sku":"PC0220B","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0220B.jpg?v=1773974482"},{"product_id":"linepaudio-b895-five-channel-stereo-microphone-mixer-with-earphone-monitoring","title":"LINEPAUDIO B895 Five-channel Stereo Microphone Mixer with Earphone Monitoring","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. The B895 is a mini five-channel stereo mixer designed for audio and video applications with independent volume control and earphone\/line output. The product has one XLR input, one 1\/8 input and three groups stereo RCA inputs. It has enough gain and output level to connect to the power amplifier with RCA or 1 \/ 8 Jack. 12VDC adapter power supply. Channel 1 has a microphone XLR input with a switchable Phantom Power supply. Channel 2 has 1\/8 and RCA input. Channel 3 and channel 4 have RCA jacks. The product can also output 1\/8 headset output, can drive up to 600 ohms headphone, with a full frequency response. \u003cbr\u003e2. DC PWR used to connect a DC12V power supply. \u003cbr\u003e3. OUT: stereo RCA jack for connecting mixers or amplifiers. \u003cbr\u003e4. CH 4 and CH 3 INPUT: stereo RCA jack for connecting signal sources such as CD player, tape deck, tuner, computer, mobile phone, tablet, etc. \u003cbr\u003e5. CH 2 input: stereo RCA and a 1\/8 jack (parallel) are used to connect signal sources, such as those mentioned in CH 3 and CH 4, or to wireless microphones or musical instruments. CH 1 INPUT: XLR Jack used to connect the microphone. A switchable jumper power source marked on the unit. Line\/headphone output: 1\/8 stereo jack for connecting sound console, amplifier, or stereo headset. CH 1-4 LEVEL: adjust the volume of each channel.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. For mixed microphone XLR input and up to three RCA input signals \u003cbr\u003e2. Input impedance: 10K ohms per jack \u003cbr\u003e3. CH1 gain: 32dB XLR jack (maximum gain)  \u003cbr\u003e4. Phantom power: for CH 1 microphone XLR \u003cbr\u003e5. CH2 gain: 26dB 1 \/ 8 inch and RCA \u003cbr\u003e6. CH 3 and CH 4 gain: each RCA--26dB \u003cbr\u003e7. Output: 1\/8 inch stereo and stereo RCA \u003cbr\u003e8. Signal-noise ratio: \u0026gt; 90dB \u003cbr\u003e9. THD: \u0026lt;0.008  \u003cbr\u003e10. IMD SMPTE: \u0026lt;0.008  \u003cbr\u003e11. Power supply: 12V DC adapter\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629022966107,"sku":"PC0320B","price":108.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0320B.jpg?v=1773974550"},{"product_id":"linepaudio-b898-six-way-stereo-loudspeaker-amplifier-comparator-bidirectional-selective-switch-switcher","title":"LINEPAUDIO B898 Six-way Stereo Loudspeaker \/ Amplifier Comparator Bidirectional Selective Switch Switcher","description":"\u003cb\u003eAbout The Product\u003c\/b\u003e\u003cbr\u003e1. 6 port stereo speaker selector amplifier switch switcher \u003cbr\u003e2. The speaker switcher allows the user to connect multiple pairs of speakers to a single stereo receiver or amplifier or vice versa to multiple amplifiers\/receivers of a single speaker pair. \u003cbr\u003e3. The device has a convenient button terminal that can accept up to 12 AWG speaker lines. \u003cbr\u003e4. Note: this speaker switch does not allow multiple speaker pairs to be selected simultaneously. Only one pair of outputs can be selected at a time. \u003cbr\u003e5. This speaker selection can also be used in the opposite way, imagine having multiple amplifiers connected to a speaker pair for setting. Because each stereo amplifier has its own sound characteristics, the user can connect different power amplifiers to the switch and then output to the same speaker pair. \u003cbr\u003e6. Connect multiple speakers to an audio amplifier\/receiver as loudspeakers to select a pair of speakers at a time. \u003cbr\u003e7. Connect multiple amplifiers\/receivers to a pair of speakers as an amplifier selection to select one amplifier\/receiver. \u003cbr\u003e8. The high-current amplifier protection circuit allows up to 6 pairs of speakers to be connected without damaging the amplifier. The protection circuit can safely protect unselected amplifiers or loudspeakers. \u003cbr\u003e9. Select each time with a manual button on the front panel. Independent left\/right channel grounding path, are compatible with all stereo amplifiers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Use convenient button terminal, can accept up to 12 AWG loudspeaker wires. \u003cbr\u003e2. Supports up to 100 watts of amplifier power and 4 to 16 ohms of all types of speakers. \u003cbr\u003e3. Sturdy, luxurious steel metal case and good shielding. \u003cbr\u003e4. Independent left and right channel grounding path-in-type push-in terminal. \u003cbr\u003e5. No external power supply is required. \u003cbr\u003e6. Rated power: 100 watts per channel.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629023424859,"sku":"PC0322B","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/PC0322B.jpg?v=1773974565"},{"product_id":"a926-four-in-two-out-signal-amplifying-switcher-a926","title":"A926 Four-In Two-Out Signal Amplifying Switcher, A926","description":"\u003cb\u003eAbout the product\u003c\/b\u003e\u003cbr\u003e1. A high-performance portable mini size front-end signal amplifying switcher and sound quality processor,  \u003cbr\u003e2. Built-in high-performance power processor and signal amplifier \u003cbr\u003e3. For circuit design, Texas Instruments(TI) NE5532 dual operation amplifying chip in top quality acts as the front-end amplifier.  \u003cbr\u003e4. NE5532P is tailored for the high-performance audio system, which features ultralow harmonic distortion, low noise, high gain bandwidth or other.  \u003cbr\u003e5. Dual FET input widens the dynamic range for NE5532, and sound signal amplification and bipolar operational amplifier.  \u003cbr\u003e6. NE5532 audio enhancement technology can correct and recover any signal loss and phase deviation of audio signal system for any reason, reproducing sound and indulging the audiences in the spot effects of enhanced high-low sound, somewhat ideal positioning, definition and brightness.  \u003cbr\u003e7. With the audio enhancement circuit, audio system will brighten sound, bring you closer to depth, slenderness and definition, fine treble, penetrating middle and strong and natural bass, placing the audiences on spot.  \u003cbr\u003e8. Sound signal amplifying switcher, mainly used to switch various multi-channel signal inputs, such as computer, cellphone, tablet, game console, TV set, TV box, MP3.  \u003cbr\u003e9. Additionally with output equipment of signal source or other signal inputs, used for amplifying switch \u003cbr\u003e10. The front-end output adopts 3.5mm interface, the back-end output adopts RCA interface. 11. 11. Simultaneous output of balance circuit architecture is enabled in front-end and back-end, output can be connected to the headphone, stereo, amplifier or any other equipment, used as sound signal amplifying switcher for four-channel signal input and two-channel signal output.  \u003cbr\u003e12. With a wide range of application, readily used in any signal input equipment, or used as the front-end signal amplifier, power supply adopts bleeding technology, uses the high-precision potentiometer for balance adjusting, and the positive and negative voltage balance is ultrahigh.  \u003cbr\u003e13. Additionally with the tailored high-capacity filter capacitor, ensuring the clean power supply.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMain Features\u003c\/b\u003e\u003cbr\u003e1. Four-channel switch circuit (3.5 headphone base and gilt RCA base) replaces input signal with no need to unplug, just turn the panel option switch. \u003cbr\u003e2. High-precision power bleeder circuit ensures the stability of circuit and reduces DC shift of output. \u003cbr\u003e3. Advanced input and output connecting base ensures the smoothness and durability of signal channel. \u003cbr\u003e4. NE5532, well-tailored for the high-performance audio system in best signal amplification, acts as front-end amplification. \u003cbr\u003e5. Original potentiometer made in Taiwan, with small sound loss, high balance, good hand feel and durability. \u003cbr\u003e6. Aluminum alloy housing has a high density of wiredrawing in oxidation treatment, good-looking and noble with screen, but with no color-shading as paint spraying. \u003cbr\u003e7. Standard input interface: 4 x 3.5mm (with four-channel signal input switch) \u003cbr\u003e8. Standard output interface: 3.5mm headphone base and RCA red-white audio base (with simultaneous output)\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Contents\u003c\/b\u003e\u003cbr\u003e- 1 x A926 Four-In Two-Out Signal Amplifying Switcher  \u003cbr\u003e- 1 x 100-240V Power Adapter (DC12V, US Standard, 100cm power cord)  \u003cbr\u003e- 4 x 3.5mm Audio Cable (Length: 100cm)\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A926","offer_id":52629235335515,"sku":"S-PC-0485B","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/S-PC-0485B.jpg?v=1773976663"},{"product_id":"b042-4-in-2-out-power-amplifier-sound-switcher-loudspeaker-switch-distributor-300w-per-channel-lossless-sound-quality-b042","title":"B042 4-in 2-out Power Amplifier Sound Switcher Loudspeaker Switch Distributor, 300W Per Channel Lossless Sound Quality, B042","description":"Product Presentation：\u003cbr\u003eDo you have 4 power amplifiers and 2 sets of speakers that need to be connected to each other? Do you need four amplifiers and two sets of speakers to get stuck?\u003cbr\u003eA powerful amplifier and audio switcher can solve these problems,\u003cbr\u003e1. 4 power amplifiers push-button select switch input,2 sets of stereo speakers push-button select switch output (2 sets of speakers can be opened or closed independently)\u003cbr\u003e2. sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch\u003cbr\u003e3. The maximum power of each channel is 300W\u003cbr\u003e4. Signal input provides vacuum tube power amplifier signal no-load protection function\u003cbr\u003e5. manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise\u003cbr\u003e6. Compact design of solid metal shell, easy installation, the product does not need external power\u003cbr\u003e7.  Simple installation: Input and output plug and play easy installation, you can enjoy different audio experience\u003cbr\u003e\u003cbr\u003eProduct Parameter：\u003cbr\u003e1. Compatible with all types of power amplifiers and speakers\u003cbr\u003e2. Input\/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port\u003cbr\u003e3. Connect the power amplifier to amplifier 1-2-3-4\u003cbr\u003e4. Connect the loudspeaker to position A and B respectively\u003cbr\u003e5. Turn on your power amplifier stereo device and the product requires no external power supply\u003cbr\u003e6. Input:4 sets of inputs (banana plug)\u003cbr\u003e7. Output: 2 sets of output (banana plug)\u003cbr\u003e8. Power: Up to 300W\u003cbr\u003e9. Metal material, fine steel housing, compact size suitable for any system\u003cbr\u003e10. Channel Power: Each channel supports up to 300W of power\u003cbr\u003e11. Frequency response: 10Hz-50KHz\u003cbr\u003e12. Net weight: 0.93 kg\u003cbr\u003e13. Packed weight: 1.09 kg\u003cbr\u003e14. Product size: length 240mm x width 105mm x height 55mm\u003cbr\u003e15. Packing size: length260mm x width 185mm x height 65mm\u003cbr\u003e16. Kit list：4 input 2 output power amplifier and sound switcher loudspeaker switch distributor x 1","brand":"GadgetHQ","offers":[{"title":"B042","offer_id":52629262860635,"sku":"SYA0014263","price":105.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014263.jpg?v=1773977185"},{"product_id":"4-input-2-output-power-amplifier-and-speaker-switcher-speaker-switch-splitter-comparator-300w-per-channel-without-loss-of-sound-quality-4-in-2-out","title":"4 Input 2 Output Power Amplifier And Speaker Switcher Speaker Switch Splitter Comparator 300W Per Channel Without Loss Of Sound Quality, 4 In 2 Out","description":"Product presentation：\u003cbr\u003eDo you have 4 power amplifiers and 2 sets of speakers that need to be connected to each other?\u003cbr\u003eDo you need four amplifiers and two sets of speakers to get stuck?\u003cbr\u003eA powerful amplifier and audio switcher can solve these problems,\u003cbr\u003e1. 4 power amplifiers push-button select switch input,2 sets of stereo speakers push-button select switch output (2 sets of speakers can be opened or closed independently)\u003cbr\u003e2. sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch\u003cbr\u003e3. The power of each channel is 300W\u003cbr\u003e4. Signal input provides vacuum tube power amplifier signal no-load protection function\u003cbr\u003e5. manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise\u003cbr\u003e6. Compact design of solid metal shell, easy installation, the product does not need external power\u003cbr\u003e7. simple installation: input and output plug and play easy installation, you can enjoy different audio experience\u003cbr\u003e\u003cbr\u003eProduct Parameter：\u003cbr\u003e1. Compatible with all types of power amplifiers and speakers\u003cbr\u003e2. Input\/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port\u003cbr\u003e3. Connect the power amplifier to amplifier 1-2-3-4\u003cbr\u003e4. Connect the loudspeaker to position A and B respectively\u003cbr\u003e5. Turn on your power amplifier stereo device and the product requires no external power supply\u003cbr\u003e6. Input: 4 sets of inputs (banana plug)\u003cbr\u003e7. Output: 2 sets of output (banana plug)\u003cbr\u003e8. Power: Up to 300W\u003cbr\u003e9. Metal material, fine steel housing, compact size suitable for any system\u003cbr\u003e10. Channel Power: Each channel supports up to 300W of power\u003cbr\u003e11. Frequency response: 10Hz-50KHz\u003cbr\u003e12. Net weight: 0.93 kg\u003cbr\u003e13. Packed weight: 1.09 kg\u003cbr\u003e14. Product size: Length 240mm x width 105mm x height 55mm\u003cbr\u003e15. Packing size: Length 260mm x width 185mm x height 65mm\u003cbr\u003e16. Kit list：4 input 2 output power amplifier and sound switcher loudspeaker switch distributor x 1","brand":"GadgetHQ","offers":[{"title":"4 In 2 Out","offer_id":52629263122779,"sku":"SYA0014264","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014264.jpg?v=1773977218"},{"product_id":"b050-passive-speaker-volume-adjustment-controller-left-and-right-channel-independent-volume-adjustment-150w-per-channel-b050","title":"B050  Passive Speaker Volume Adjustment Controller,  Left And Right Channel Independent Volume Adjustment, 150W Per Channel, B050","description":"Product description：\u003cbr\u003e1. External power amplifier rear passive speakers left and right sound channel double knob independent volume adjustment control box\u003cbr\u003e2. Each channel supports 150 watts of processing power\u003cbr\u003e3. Independent control of stereo channel (Left track and right track)\u003cbr\u003e4. Volume control knob, clean, smooth volume adjustment can be achieved.\u003cbr\u003e5. Input\/output：Use screw type connector terminals\u003cbr\u003e6. Simple for operating, after the left and right sound channel of the amplifier is connected respectively in volume control box, the output of the left and right sound box realizes volume to adjust the volume size of the left and right sound box respectively.\u003cbr\u003e7. Desktop type power amplifier output passive speaker volume control box, it can easily control the volume of the sound channel of the passive sound box, easy for installation,  just plug it in and use it. \u003cbr\u003e8. There is a separate volume knob switch, metal construction, brief outward and Compact Size.\u003cbr\u003e\u003cbr\u003eProduct parameters：\u003cbr\u003e1. Power processing: Each audio\/speaker channel 150 watts\u003cbr\u003e2. Support soundtrack: Stereo left and right channels\u003cbr\u003e3. Support impedance: 4-16ohm\u003cbr\u003e4. Speaker cable support:  14 wire gauge（14 AWG）\u003cbr\u003e5. Support interface: Input\/Output, using screw type connector terminals \u003cbr\u003e6. Volume adjustment: Left and right sound channel independent volume size adjustment\u003cbr\u003e7. Net Weight: 0.7 kg\u003cbr\u003e8. Packed weight: 0.8kg\u003cbr\u003e9. Product size: Length 150mm x Width 68mm x Height 55mm\u003cbr\u003e10. Package size: Length 185mm x Width 135mm x Height 65mm\u003cbr\u003e11. Kit list: Passive loudspeaker volume control box x 1","brand":"GadgetHQ","offers":[{"title":"B050","offer_id":52629263515995,"sku":"SYA0014265","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014265.jpg?v=1773977252"},{"product_id":"b051-2-input-and-1-output-power-amplifier-and-speaker-selection-switcher-output-with-volume-adjustment-2-power-amplifiers-audio-switcher-switch-distribution-comparator-b051","title":"B051 2 Input And 1 Output Power Amplifier And Speaker Selection Switcher Output With Volume Adjustment 2 Power Amplifiers Audio Switcher Switch Distribution Comparator, B051","description":"Product presentation:\u003cbr\u003e1. Support power is 200 watts: 1 and 2 power amplifiers with 1 pair of speaker selector switches, ideal for home theater sound systems, power of 200 watts per channel, suitable for 4–16-ohm impedance speakers, with a compact thin desktop design, compatible with any home theater setting.\u003cbr\u003e2. AMPC Amplifier Control: The two-channel speaker switcher controls the stereo connection between two amplifiers and a set of speakers, or the combination connection switch selection, input\/output through the screw-type connector terminals, which accept 14AWG speaker wire.\u003cbr\u003e3. Independent audio control: With independent audio source channel volume control. The button design allows you to individually select each amplifier to customize your home listening experience, and the volume switch controls the volume adjustment of the output speakers.\u003cbr\u003e4. Simple installation: The enjoyment of quality audio performance requires connecting the left and right channel outputs of the amplifier to the left\/right and 1\/2 amplifier inputs with 1 on 2 speakers on a mini dual channel controller.\u003cbr\u003e5. Overload protection: Equipped with a front panel control switch consisting of volume control knob and amplifier switch.Provide high quality audio and overload safety protection circuits and long-term reliability.\u003cbr\u003e\u003cbr\u003eProduct Parameter：\u003cbr\u003e1. 2 input 1 output amplifier speaker selector switcher\u003cbr\u003e2. Convenient audio control accommodates 2 amplifiers with 1 pair of speakers.\u003cbr\u003e3. Home theater stereo amplifier system support, independent audio source channel volume control\u003cbr\u003e4. Input\/output: screw type connector terminal, compact desktop\/desktop mini design\u003cbr\u003e5. Front panel button control center, the product needs no power supplyBuilt-in electronic overload protection circuit\u003cbr\u003e6. Power processing:  200 watts per audio\/speaker channel\u003cbr\u003e7. Speaker selector type: 2 soundtracks\u003cbr\u003e8. Speaker cable support: 14 wire gauge (14 AWG)\u003cbr\u003e9. Support impedance: 4-16 ohms\u003cbr\u003e10. Frequency response: 20Hz-20kHz\u003cbr\u003e11. Net Weight: 1.06 kg\u003cbr\u003e12. Packed weight: 1.21 kg\u003cbr\u003e13. Product size: Length 160mm x Width103mm x Height 55mm\u003cbr\u003e14. Package size: Length 260mm x Width 185mm x Height 65mm\u003cbr\u003e15. Kit list: 2 input 1 output amplifier speaker switcher output with volume adjustment function x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B051","offer_id":52629264400731,"sku":"SYA0014266","price":100.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014266.jpg?v=1773977287"},{"product_id":"3-channel-mixer-front-stereo-amplifier-high-mid-bass-adjuster-usb-5v-power-supply-us-plug-b056","title":"3-Channel Mixer Front Stereo Amplifier High \/ Mid \/ Bass Adjuster, USB 5V Power Supply, US Plug, B056","description":"Product presentation:\u003cbr\u003e1. Sound adjustment: support high\/medium\/bass EQ adjustment, high\/medium\/bass can enhance +15dB and attenuation -15dB adjustment, support left and right channel balance adjustment, suitable for some need to adjust the tone of equipment, using compact and thin desktop mini design, compact size, compatible with any equipment\u003cbr\u003e2. Three sets of stereo mixed input: 3.5mm+6.5mm+RCA\u003cbr\u003e3. Provides three sets of stereo output simultaneously: RCA+RCA+3.5mm\u003cbr\u003e4. Independent Toner Audio Control: With independent audio source channel high\/middle\/bass control attenuations -15dB and +15dB gain, the sound adjustment design allows you to adjust the audio independently to listen to the experience and control the output volume independently\u003cbr\u003e5. Simple installation: input and output plug and play easy installation, you can enjoy different audio experience\u003cbr\u003e6. USB 5V power supply, suitable for different applications\u003cbr\u003e\u003cbr\u003eProduct Parameter:\u003cbr\u003e1. Input channel: 3-way stereo input 3.5mm+6.5mm+RCA interface\u003cbr\u003e2. Output channel: 3.5mm\/RCA interface\u003cbr\u003e3. Input impedance: 100K Ohm\u003cbr\u003e4. Output gain: High, medium and low -15dB and +15dB\u003cbr\u003e5. Frequency response: 20Hz-20KHz\u003cbr\u003e6. Signal to noise ratio: More than 107dB\u003cbr\u003e7. Total Harmonic Distortion: Less than 0.08%\u003cbr\u003e8. Intermodulation distortion: Less than 0.01%\u003cbr\u003e9. Power supply: USB 5V\u003cbr\u003e10. Net weight: 0.38kg\u003cbr\u003e11. Gross weight after packing: 0.53kg\u003cbr\u003e12. Product size: Length 130 mm X width 77 mm X height 38 mm\u003cbr\u003e13. Packing size: Length 200mm X width 185mm X height 55mm\u003cbr\u003e\u003cbr\u003eKit list:\u003cbr\u003e1. Front Stereo Phoner High\/Middle\/Bass Adjuster x 1\u003cbr\u003e2. USB power cord, length 120CM x 1\u003cbr\u003e3. USB power adapter US standard x 1","brand":"GadgetHQ","offers":[{"title":"B056","offer_id":52629264662875,"sku":"SYA0014271","price":93.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014271.jpg?v=1773977310"},{"product_id":"b032-2-in-4-out-power-amplifier-sound-switcher-speaker-lossless-sound-quality-300w-per-channel-switch-distributor-comparator-with-headset-monitoring-function-audio-input-b032","title":"B032 2-in 4-out Power Amplifier Sound Switcher Speaker  Lossless Sound Quality 300W Per Channel Switch Distributor Comparator with Headset Monitoring Function \/ Audio Input, B032","description":"Product description:\u003cbr\u003eDo you have trouble connecting two power amplifiers to four sets of speakers? Do you need a power amplifier to make all four speakers sound at the same time?\u003cbr\u003eA powerful power amplifier with a sound switcher can solve the above problems.\u003cbr\u003e1. Touch-tone switching input for 2 power amplifiers, touch-tone selective switching output for 4 stereo speakers (4 sets of speakers can be turned on or off independently)\u003cbr\u003e2. Four sets of stereo speakers can sound at the same time, or one or more sets of speakers can be turned off separately, manually selecting a push-button switch\u003cbr\u003e3. Maximum support power per channel is 300W\u003cbr\u003e4. Signal input provides no-load protection function of vacuum tube power amplifier signal\u003cbr\u003e5. Provide output earphone monitoring function, 6.5mm interface, earphone output with volume adjustment function\u003cbr\u003e6. The input and output are manually selected for switching, and directly plugged in for direct use. The switching signal is stable, and there will be no additional dryness or noise between channels\u003cbr\u003e7. Compact design, strong metal case, easy installation, no external power supply\u003cbr\u003e\u003cbr\u003eProduct parameters:\u003cbr\u003e1. Compatible with all types of power amplifiers and speakers.\u003cbr\u003e2. The input\/output receives heavy speaker wire or speaker pin wire through the terminal port.\u003cbr\u003e3. Connect the power amplifier to the position of amplifier A or Amplifier B.\u003cbr\u003e4. Connect the loudspeakers to the 1-2-3-4 loudspeaker respectively.\u003cbr\u003e5. Turn on your power amplifier stereo, the product does not require external power.\u003cbr\u003e6. Earphone listening interface: 6.5mm\u003cbr\u003e7. Input: 2 sets of input (banana plug)\u003cbr\u003e8. Output: 4 sets of output (banana plug)\u003cbr\u003e9. Power: Support 300W\u003cbr\u003e10. Metallic material, stainless steel case, compact size suitable for any system.\u003cbr\u003e11. Channel power: Each channel supports up to 300W.\u003cbr\u003e12. Frequency response: 10Hz - 50KHz.\u003cbr\u003e13. Net weight: 0.86 kg\u003cbr\u003e14. Product weight after packaging: 0.98 kg\u003cbr\u003e15. Product size: Length 240mm x width 113mm x height 55mm\u003cbr\u003e16. Package size: Length 260mm x width 185mm x height 65mm high\u003cbr\u003e17. Kit list: 2 in 4 out power amplifier x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B032","offer_id":52629264761179,"sku":"SYA0014273","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014273.jpg?v=1773977335"},{"product_id":"1-in-and-4-out-amplifier-sound-speaker-distributor-4-area-sound-source-signal-distribution-panel-single-audio-input-300w-per-channel-b030","title":"1 In And 4 Out Amplifier Sound Speaker Distributor, 4-Area Sound Source, Signal Distribution Panel, Single Audio Input, 300W Per Channel, B030","description":"Product description:\u003cbr\u003e1. Are you stuck with a set of power amplifier signals that need to be assigned to several speakers? Now this distribution panel can solve the problem of allocating one set of stereo inputs to four sets of speakers at the same time.\u003cbr\u003e2. Number of speakers: we recommend you to use no more than 4 sets of speakers\u003cbr\u003e3. Support power handling: rated power of each channel with amplifier up to 300W\u003cbr\u003e4. Speaker wires: 2 or 4 wires, 16 AWG to 14 AWG\u003cbr\u003e5. Easy to install: The input and output connectors can be wired, and the partition can be set. Compact design - Simple and compact design\u003cbr\u003e\u003cbr\u003eProduct parameters:\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Input: 1 set of input (banana plug)\u003cbr\u003e3. Output: 4 sets of output (banana plug)\u003cbr\u003e4. Power: Support 300W (The product requires no external power supply and is easy to install)\u003cbr\u003e5. Net weight: 0.51 kg\u003cbr\u003e6. Product weight after packaging: 0.56kg\u003cbr\u003e7. Product size: length 245mm x width 65mm x height 51mm\u003cbr\u003e8. Package size: length 250mm x width 73mm x height 60mm \u003cbr\u003e9. Kit list:  1 in and 4 out Amplifier x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B030","offer_id":52629264990555,"sku":"SYA0014275","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014275.jpg?v=1773977359"},{"product_id":"1-in-4-out-front-stereo-signal-amplifier-independent-output-volume-adjustment-rca-interface-no-loss-allocator-us-plug-b029","title":"1-In 4-Out Front Stereo Signal Amplifier, Independent Output Volume Adjustment RCA Interface No Loss  Allocator, US Plug, B029","description":"Product description:\u003cbr\u003e1. If you have a line level signal source (TV audio, MP3 player, video game machine, cell phone, tablet, computer, record player, etc.) to output to other devices at the same time (such as power amplifier and speakers or headphones), this product can solve the problem of one set of stereo input, which can allocate four sets of stereo, output independent four sets of volume adjustment function, with each channel output band + 20dB gain.\u003cbr\u003e2. For a powerful signal amplifier distributor, you may need to run several long lines between the TV audio line and a receiver on the other side of the room, providing high gain through any line level signal source, allowing longer cable lines to run, or requiring \"buffering\" to solve low volume problem. You can use it to add signal amplifiers between the line level signal source and the power amplifier, and the RCA jack matches almost all other product interfaces.\u003cbr\u003e3. This product can increase the sound quality of the control signal and reduce the bottom noise. With a large dynamic range, it will not produce a burst. The output volume is controlled by sensitivity adjustment knob, and DC 12V power supply is adopted to ensure full thrust.\u003cbr\u003e\u003cbr\u003eProduct parameters:\u003cbr\u003e1. Input impedance: 100K Ohm\u003cbr\u003e2. Input level: +14 dBV\u003cbr\u003e3. Output impedance: 47 Ohm per output channel\u003cbr\u003e4. Frequency response: 20 Hz-20K Hz\u003cbr\u003e5. SNR:  Less than 107dB\u003cbr\u003e6. Total harmonic distortion: Above 0.02%\u003cbr\u003e7. Intermodulation distortion: Above  0.01%\u003cbr\u003e8. I\/O interface: Stereo RCA\u003cbr\u003e9. Power supply: DC-12V\u003cbr\u003e10. Net weight: 0.31 kg\u003cbr\u003e11. Product weight after packaging: 0.46kg\u003cbr\u003e12. Product size: length 109 mm x width 79mm x height 38 mm\u003cbr\u003e13. Package size: length 185mm x width 135mm x height 65mm\u003cbr\u003e\u003cbr\u003eKit list:\u003cbr\u003e\u003cbr\u003e1.  1 in-4 out-front Stereo Signal Amplifier Allocator x 1\u003cbr\u003e2.  DC-12V Power Adapter (gauge American) wire length: 100cm","brand":"GadgetHQ","offers":[{"title":"B029","offer_id":52629265547611,"sku":"SYA0014276","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0014276.jpg?v=1773977384"},{"product_id":"2-in-4-out-power-amplifier-speaker-switcher-splitter-comparator-300w-per-channel-without-loss-of-sound-quality-b048","title":"2-in 4-out Power Amplifier Speaker Switcher Splitter Comparator 300W Per Channel Without Loss Of Sound Quality, B048","description":"Features: \u003cbr\u003eThe output of 4 groups of speakers can be divided into 4 zone switch control, each group of speakers can independently select A and B power amplifier output, and each group of speaker output can independently turn on and off the function.\u003cbr\u003e\u003cbr\u003eDo you have 2 power amplifiers and 4 sets of speakers that need to be connected to each other?\u003cbr\u003eDo you need 2 amplifiers and 4 sets of speakers to get stuck?\u003cbr\u003eA powerful amplifier and audio switcher can solve these problems,\u003cbr\u003e1. 2 power amplifiers push-button select switch input,4 sets of stereo speakers push-button select switch output (4 sets of speakers can be opened or closed independently)\u003cbr\u003e2. Sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch\u003cbr\u003e3. The maximum power of each channel is 300W\u003cbr\u003e4. Signal input provides vacuum tube power amplifier signal no-load protection function\u003cbr\u003e5. Manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise\u003cbr\u003e6. Compact design of solid metal shell, easy installation, the product does not need external power\u003cbr\u003e7. Simple installation: input and output plug and play easy installation, you can enjoy different audio experience\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eProduct Parameter:\u003cbr\u003e1. Compatible with all types of power amplifiers and speakers\u003cbr\u003e2. Input\/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port\u003cbr\u003e3. Connect the power amplifier to amplifier A and B\u003cbr\u003e4. Connect the loudspeaker to position 1-2-3-4 respectively\u003cbr\u003e5. Turn on your power amplifier stereo device and the product requires no external power supply\u003cbr\u003e6. Input: 2 sets of inputs (banana plug)\u003cbr\u003e7. Output: 4 sets of output (banana plug)\u003cbr\u003e8. Power: up to 300W\u003cbr\u003e9. Metal material, fine steel housing, compact size suitable for any system\u003cbr\u003e10. Channel Power: Each channel supports up to 300W of power\u003cbr\u003e11. Frequency response: 10Hz-50KHz\u003cbr\u003e12. Product size: length 240mm X width 105mm X height 55mm\u003cbr\u003e13. Net weight :0.92 kg\u003cbr\u003e14. Kit list: 1 x 2 input 4 output power amplifier switch distributor\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B048","offer_id":52629266137435,"sku":"SYA0015103","price":112.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0015103.jpg?v=1773977424"},{"product_id":"100w-1-in-8-out-power-amplifier-box-distribute-switcher-loudspeaker","title":"100W 1 In 8 Out Power Amplifier Box Distribute Switcher Loudspeaker","description":"Do you have trouble at that how to connect 1 set power amplifier and 8 sets loudspeakers?\u003cbr\u003eDo you have trouble at that make 1 set power amplifier and 8 sets loudspeakers sounding at the same time?\u003cbr\u003eOne strong loudspeaker signal distribute device able to solve the above problems,\u003cbr\u003e1. 8 sets stereophonic loudspeaker key type switch select output (8 sets loudspeakers able to be independently start or close)\u003cbr\u003e2. 8 sets stereophonic loudspeaker able to send sound at the same time, also able to close one set loudspeaker or multiply sets loudspeaker independently, manually select the key type switch.\u003cbr\u003e3. Signal input provide the power amplifier signal idle protect function.\u003cbr\u003e4. Adopt convenient snap fastener type wiring terminals, able to accept up to 12AWG loudspeaker wires.\u003cbr\u003e5. Input passageway support up to 300W power amplifier and all types loudspeakers from 4 ohms to 16 ohms.\u003cbr\u003e6. Each one passageway output manually select switch, able to be used once inserted, stably shift signal, not generate any disturb or noise among the passageways.\u003cbr\u003e7. Compact design and solid metal shell, simple installation, the product no need additionally connect power supply.\u003cbr\u003e\u003cbr\u003eProduct Parameter:\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: snap fastener type wiring terminal\u003cbr\u003e3. Power supply: No need additionally connect power supply, able to be used once inserted\u003cbr\u003e4. Compatible all types power amplifiers and loudspeakers\u003cbr\u003e5. Connect the power amplifier to AMP-INPUT position.\u003cbr\u003e6. Connect the loudspeaker to 1-2-3-4-5-6-7-8 position respectively.\u003cbr\u003e7. Input: 1 set input (wiring terminal)\u003cbr\u003e8. Output: 8 sets output (wiring terminal)\u003cbr\u003e9. Power: input passageway support 300W\u003cbr\u003e10. Metal materials, fine steel shell, compact size suitable to any system.\u003cbr\u003e12. Frequency responding: 10Hz - 50KHz.\u003cbr\u003e13. Single product net weight: 0.94 kg\u003cbr\u003e14. Product size: Length 335mm x width 95mm x height 45mm","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629266366811,"sku":"SYA0017941","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017941.jpg?v=1773977459"},{"product_id":"b059-10-in-2-out-2-in-10-out-2-way-rca-switch-audio-frequency-signal-select-shift-device-loudspeaker-box-b059","title":"B059 10 In 2 Out \/ 2 In 10 Out 2-Way RCA Switch Audio Frequency Signal Select Shift Device Loudspeaker Box, B059","description":"Do you have trouble at that how to connect 10 sets stereophonic signal source and 2 sets output equipment?\u003cbr\u003eDo you have trouble at that how to connect 2 sets stereophonic signal source and 10 sets output equipment?\u003cbr\u003eOne strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out, double way use.\u003cbr\u003e\u003cbr\u003e1. 10 sets stereophonic input adopt 10 gears mechanical switch manually shift, gears switch will not generate burst sound when shifting\u003cbr\u003e2. 2 sets output switch shift, 2 sets output can’t be output at the same time.\u003cbr\u003e3. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experience\u003cbr\u003e4. Mainly used to select and shift various stereophonic signal input mutually use to output one set or multiply sets equipment, example there has multiply stereophonic signal source (TV audio frequency, MP3 player, CD player, video game, mobile phone, PAD, computer, gramophone) and other equipment need output to power amplifier or source loudspeaker box.\u003cbr\u003e5. 10 sets audio frequency signal select shift device solve the complex circuit plug in and out operation, unify connect the equipment signal source which need input to the shift device then easily convenient to select.\u003cbr\u003e6. This product able to realize two operating methods, 10 input 2 output, reversely wiring realize 2 input 10 output, double ways use.\u003cbr\u003e\u003cbr\u003eProduct Parameter:\u003cbr\u003e1. Material: metal\u003cbr\u003e2. Color: Black\u003cbr\u003e3. Interface: RCA interface\u003cbr\u003e4. Power supply:  No need additionally connect power supply, able to be used once inserted\u003cbr\u003e5. Input and output impedance: 10K ohms - 50K ohms\u003cbr\u003e6. Frequency responding: 20 - 20kHz\u003cbr\u003e7. Distortion:  Less than 0.002%\u003cbr\u003e8. Output consumption: Less than 0.01dB\u003cbr\u003e9. Signal gain: 0dB\u003cbr\u003e10. Signal-noise ratio S\/N:  Greater  than 98dB\u003cbr\u003e11. Input and output interface: Standard RCA interface\u003cbr\u003e12. Input passageway quantity: 10 ways stereophonic select and shift input\u003cbr\u003e13. Output passageway quantity: 2 ways stereophonic select and shift output (Can not output at the same time, select 1 in 2 to output)\u003cbr\u003e14. Control switch: 10 gears shift switch and 1 set switch, accurately select the manually shift switch\u003cbr\u003e15. Input select shift passageway: 10 passageways\u003cbr\u003e16. Output select shift passageway: 2 passageways\u003cbr\u003e17. Single product net weight: 0.54 kg\u003cbr\u003e18. Product size: length 192mm x width 91mm x height 38mm","brand":"GadgetHQ","offers":[{"title":"B059","offer_id":52629266923867,"sku":"SYA0017944","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017944.jpg?v=1773977480"},{"product_id":"6-in-4-out-rca-audio-switcher-signal-selector-distribute-device-switch-control","title":"6 In 4 Out RCA Audio Switcher Signal Selector Distribute Device Switch Control","description":"Do you have trouble at that how to connect 6 sets signal source output and 4 sets equipment?\u003cbr\u003eDo you have trouble at that how to make 4 sets equipment output send sound at the same time after 6 sets equipment select shift output?\u003cbr\u003eOne strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out,\u003cbr\u003e\u003cbr\u003e1. 6 sets input adopt 6 gears mechanical switch manually shift, gears switch will not generate burst sound when shifting\u003cbr\u003e2. 4 sets output has independent switch, able to start at the same time, also able to be closed independently, start at the same time no consumption at the signal source tone quality and volume.\u003cbr\u003e3. Simple installation: Input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experience\u003cbr\u003e4. Mainly used to select and shift various stereophonic signal input mutually use to output one set or multiply sets equipment, example there has multiply stereophonic signal source (TV audio frequency, MP3 player, CD player, video game, mobile phone, PAD, computer, gramophone) and other equipment need output to power amplifier or source loudspeaker box.\u003cbr\u003e5. 6 sets audio source select shift device solve the complex circuit plug in and out operation, unify connect the equipment signal source which need input to the shift device then easily convenient to select.\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: RCA interface\u003cbr\u003e3. Power supply: USB 5V supply power\u003cbr\u003e4. Input and output impedance: 10Kohms - 50Kohms\u003cbr\u003e5. Frequency responding: 20Hz - 20kHz\u003cbr\u003e6. Distortion: Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 0dB\u003cbr\u003e9. Signal-noise ratio S\/N:  Greater than 98dB\u003cbr\u003e10. Input and output interface: standard RCA interface\u003cbr\u003e11. Input passageway: 6 sets stereophonic shift input\u003cbr\u003e12. Output passageway: 4 sets stereophonic switch select output (able to start at the same time or close independently)\u003cbr\u003e13. Control switch: 6 gears shift switch and 4 sets switches, accurately select the manually shift switch\u003cbr\u003e14. Input select shift passageway: 6 passageways\u003cbr\u003e15. Output select shift passageway: 4 passageways\u003cbr\u003e16. Single product net weight: 0.37 kg\u003cbr\u003e17. Product size: Length 162mm x width 63mm x height 38mm\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e1. B049 6 in 4 out audio frequency signal select and switch distribute device x 1\u003cbr\u003e2. USB power supply wire (wire length 100cm) x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629267087707,"sku":"SYA0017945","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017945.jpg?v=1773977502"},{"product_id":"4-in-2-out-2-in-4-out-rca-audio-signal-selector-switch-device-with-remote-control","title":"4 In 2 Out \/ 2 In 4 Out RCA Audio Signal Selector Switch Device with Remote Control","description":"Do you have trouble at that how to connect 4 sets stereophonic signal source and 2 sets output equipment?\u003cbr\u003eDo you have trouble at that how to connect 2 sets signal source equipment and 4 sets output equipment?\u003cbr\u003eOne strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out, double way use. With remote control shift function.\u003cbr\u003e1. 4 sets stereophonic input, 2 sets stereophonic output adopt digit switch shift and remote control shift, will not generate burst sound when shifting\u003cbr\u003e2. Input and output able to be used once inserted, non consumption shift at input and output signal.\u003cbr\u003e3. Mainly used to select and shift various stereophonic signal input mutually use to output one set or multiply sets equipment, example there has multiply stereophonic signal source (TV audio frequency, MP3 player, CD player, video game, mobile phone, PAD, computer, gramophone) and other equipment need output to power amplifier or source loudspeaker box.\u003cbr\u003e4. 4 sets signal audio source select shift device solve the complex circuit plug in and out operation, unify connect the equipment signal source which need input to the shift device then easily convenient to select.\u003cbr\u003e5. This product able to realize two operating methods, 4 input 2 output, reversely wiring realize 2 input 4 output, double ways use.\u003cbr\u003e1. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: RCA interface\u003cbr\u003e3. Power supply: USB 5V supply power, able to be used once inserted\u003cbr\u003e4. Input and output impedance: 10Kohms - 50Kohms\u003cbr\u003e5. Frequency responding: 20 - 20kHz.\u003cbr\u003e6. Distortion: Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 0dB\u003cbr\u003e9. Signal-noise ratio S\/N: Greater than 98dB\u003cbr\u003e10. Input and output interface: standard RCA gold plating interface\u003cbr\u003e11. Input passageway: 4 ways stereophonic shift input (can not mix input at the same time, select 1 in 4 to output)\u003cbr\u003e12. Output passageway: 2 ways stereophonic select and shift output (cannot output at the same time, select 1 in 2 to output)\u003cbr\u003e13. Control switch method: manually shift, or remote control shift\u003cbr\u003e14. Input shift passageway: 4 passageways\u003cbr\u003e15. Output shift passageway: 2 passageways\u003cbr\u003e16. Single product net weight: 0.35kg\u003cbr\u003e17. Product size: length 123mm x width 75mm x height 38mm\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e1. B060--4 in 2 out audio frequency signal select and shift device x 1\u003cbr\u003e2. USB power supply wire (wire length 100cm) x 1\u003cbr\u003e3. Remote controller x 1","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629267251547,"sku":"SYA0017946","price":100.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017946.jpg?v=1773977524"},{"product_id":"passive-preamp-source-loudspeaker-box-rca-no-power-volume-adjustment-controller-passive-preamp","title":"Passive Preamp Source Loudspeaker Box RCA No Power Volume Adjustment Controller, Passive Preamp","description":"1. Non source prime stage stereophonic volume adjustment controller,\u003cbr\u003e2. Suitable to too big volume gain equipment (example computer sound card, DAC decoder, CD machine, digit player, source loudspeaker box, late stage power amplifier and other equipment),\u003cbr\u003e3. Volume adjustment adopt professional 129mm clipper volume switch, smaller clipper switch precision error, more better left and right track synchronization, sound details no consumption.\u003cbr\u003e4. Make table type volume adjustment more convenient, volume size adjustment more visual and exquisite size.\u003cbr\u003e5. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption adjustment, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: Gold plating RCA interface\u003cbr\u003e3. Power supply: No need additionally connect power supply, able to be used once inserted\u003cbr\u003e4. Input and output impedance: 10Kohm - 50Kohm\u003cbr\u003e5. Frequency responding: 20 - 20kHz.\u003cbr\u003e6. Distortion: Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 0dB\u003cbr\u003e9. Signal-noise ratio S\/N: Greater than 98dB\u003cbr\u003e10. Input and output interface: Standard RCA interface\u003cbr\u003e11. Volume control switch: Adopt professional 128mm clipper volume switch\u003cbr\u003e12. Single product net weight: 0.54 kg\u003cbr\u003e13. Product size: 170mm x 69mm x 50mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Passive Preamp","offer_id":52629267448155,"sku":"SYA0017947","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017947.jpg?v=1773977544"},{"product_id":"2-in-8-out-rca-audio-frequency-signal-select-switch-distributor-2-in-8-out","title":"2 In 8 Out RCA Audio Frequency Signal Select Switch Distributor, 2 In 8 Out","description":"Do you have trouble at that how to connect 2 sets stereophonic signal source and 8 sets output equipment?\u003cbr\u003eDo you have trouble at that how to make 8 sets equipment output send sound at the same time after 2 sets equipment select shift output?\u003cbr\u003eOne strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out,\u003cbr\u003e1. 8 sets stereophonic output has independent switch, able to start at the same time, also able to be closed independently, start at the same time no consumption at the signal source tone quality and volume.\u003cbr\u003e2. 2 sets input able to start at the same time and mix together to input, also able to close one set independently,\u003cbr\u003e3. Able to solve the problem that able to distribute output 8 sets stereophonic after 1 set or 2 sets stereophonic mix input, output independent switch control,\u003cbr\u003e4. Simple installation: input and output, able to be used once inserted, convenient to install, input and output signal no consumption, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: RCA interface\u003cbr\u003e3. Power supply: USB 5V supply power\u003cbr\u003e4. Input and output impedance: 10K ohms - 50K ohms\u003cbr\u003e5. Frequency responding: 20 - 20kHz.\u003cbr\u003e6. Distortion: Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 15dB\u003cbr\u003e9. Signal-noise ratio S\/N: Greater than 98dB\u003cbr\u003e10. Input and output interface: Standard RCA interface\u003cbr\u003e11. Input passageway quantity: 2 sets stereophonic shift input (2 sets input able to start at the same time and mix together to input, also able to close one set independently)\u003cbr\u003e12. Output passageway quantity: 8 sets stereophonic shift input (able to start at the same time and close independently)\u003cbr\u003e13. Control switch: Input and output adopt self lock switch, accurately select manually shift\u003cbr\u003e14. Input shift passageway: 2 passageways\u003cbr\u003e15. Output shift passageway: 8 passageways\u003cbr\u003e16. Single product net weight: 0.45 kg\u003cbr\u003e17. Product size: 167mm x 81mm x 38mm\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e1. B062 2 in 8 out audio frequency signal select shift device x 1\u003cbr\u003e2. USB power supply wire (wire length 100cm) x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"2 In 8 Out","offer_id":52629267513691,"sku":"SYA0017948","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017948.jpg?v=1773977565"},{"product_id":"1-in-4-out-audio-frequency-signal-distribute-device-non-consumption-output-rca-interface-1-in-4-out-rca-interface","title":"1 In 4 Out Audio Frequency Signal Distribute Device Non Consumption Output RCA Interface, 1 In 4 Out RCA Interface","description":"1. You have one stereophonic signal source (TV audio frequency, player, video game, mobile phone, PAD, computer, gramophone) want to output to other equipment at the same time (example the power amplifier, loudspeaker box or prepose amplifier)\u003cbr\u003e2. This type product able to solve that 1 set stereophonic input able to distribute output 4 sets stereophonic, \u003cbr\u003e3. Output has volume adjustment function, output without sound amplify function, the output keep the original tone quality and volume same with the input.\u003cbr\u003e4. Input and output adopt standard RCA interface\u003cbr\u003e5. Simple installation: input and output, able to be used once inserted, convenient to install, input and output signal no consumption, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: Metal\u003cbr\u003e2. Interface: RCA interface\u003cbr\u003e3. Power supply: USB 5V supply power\u003cbr\u003e4. Input and output impedance: 10K ohms - 50K ohms\u003cbr\u003e5. Frequency responding: 20 - 20kHz.\u003cbr\u003e6. Distortion:  Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 0dB\u003cbr\u003e9. Signal-noise ratio S\/N: Greater than 98dB\u003cbr\u003e10. Input and output interface: Standard RCA interface\u003cbr\u003e11. Input passageway: 1 set stereophonic input\u003cbr\u003e12. Output passageway: 4 sets stereophonic output at the same time (4 sets output unified volume adjustment)\u003cbr\u003e13. Single product net weight: 0.21kg\u003cbr\u003e14. Product size:  95mm x 53mm x 38mm\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e1. B063 1 in 4 out audio frequency signal distribute device RCA  interface x 1\u003cbr\u003e2. USB power supply wire (wire length 100cm) x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"1 In 4 Out RCA Interface","offer_id":52629268005211,"sku":"SYA0017949","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017949.jpg?v=1773977587"},{"product_id":"1-in-4-out-audio-frequency-signal-splitter-distribute-device-non-consumption-3-5mm-interface-output-1-in-4-out-3-5mm-interface","title":"1 In 4 Out Audio Frequency Signal Splitter Distribute Device, Non Consumption, 3.5mm Interface Output, 1 In 4 Out 3.5mm Interface","description":"1. You have one stereophonic signal source (TV audio frequency, player, video game, mobile phone, PAD, computer, gramophone) want to output to other equipment at the same time (example the power amplifier, loudspeaker box or prepose amplifier)\u003cbr\u003e2. This type product able to solve that 1 set stereophonic input able to distribute output 4 sets stereophonic,\u003cbr\u003e3. Output has volume adjustment function, output without sound amplify function, the output keep the original tone quality and volume same with the input.\u003cbr\u003e4. Input and output adopt 3.5mm earphone interface\u003cbr\u003e5. Simple installation: input and output, able to be used once inserted, convenient to install, input and output signal no consumption, then can enjoy different hearing experience\u003cbr\u003e\u003cbr\u003eProduct Parameter\u003cbr\u003e1. Material: metal\u003cbr\u003e2. Interface: 3.5mm interface\u003cbr\u003e3. Power supply: USB 5V supply power\u003cbr\u003e4. Input and output impedance: 10KΩ - 50KΩ\u003cbr\u003e5. Frequency responding: 20 - 20kHz.\u003cbr\u003e6. Distortion:  Less than 0.002%\u003cbr\u003e7. Output consumption: Less than 0.01dB\u003cbr\u003e8. Signal gain: 0dB\u003cbr\u003e9. Signal-noise ratio S\/N: Greater than 98dB\u003cbr\u003e10. Input and output interface: Standard 3.5mm interface\u003cbr\u003e11. Input passageway: 1 set stereophonic input\u003cbr\u003e12. Output passageway: 4 sets stereophonic output at the same time (4 sets output unified volume adjustment)\u003cbr\u003e13. Single product net weight: 0.15 kg\u003cbr\u003e14. Product size: 87mm x 52mm x 22mm\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e1. B064 1 in 4 out audio frequency signal distribute device 3.5mm interface x 1\u003cbr\u003e2. USB power supply wire (wire length 100cm)  x 1\u003cbr\u003e3. 3.5 public to public wire (wire length 100cm) x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"1 In 4 Out 3.5mm Interface","offer_id":52629268037979,"sku":"SYA0017950","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0017950.jpg?v=1773977608"},{"product_id":"2-in-and-2-out-switcher-volume-controller-rca-signal-switches-to-xlr-balanced-signal-and-no-need-for-power-supply-it-provides-rca-and-xlr-interfaces-independent-l-r-channel-volume-adjustment-which-is-suitable-for-devices-with-volume-adjustment-need","title":"2 In and 2 Out Switcher Volume Controller, RCA signal switches to XLR balanced signal and no need for power supply. It provides RCA and XLR interfaces, independent L\/R channel volume adjustment, which is suitable for devices with volume adjustment need","description":"Product function introduction\u003cbr\u003e\u003cbr\u003eA977 passive preamp active speaker volume dual-channel controller is small in size and suitable for active speakers or preamp\/post-amp, \u003cbr\u003eit supports full-balance or input and output of single-ended signal. \u003cbr\u003eThe product has functions of independent L\/R channel volume adjustment, \u003cbr\u003e2 signals input and 2 signals output. It provides balanced XLR and unbalanced RCA connectors which are automatically converted to each other, \u003cbr\u003ewith a selector switch facilitates the signal switch of input\/output.\u003cbr\u003eSmall size, big intelligence. The product is of small size, but has well-function connecters. \u003cbr\u003eIt is suitable for decoders and speakers without volume adjustment. \u003cbr\u003ethe product has the design of balanced input\/output and RCA input\/output architecture, \u003cbr\u003ewith switching function. The operation of the product will not cause loss of signal source. \u003cbr\u003eGenerally, the audio signal released from the decoder is the original sound source signal. \u003cbr\u003eGreat dynamics will not cause loss of sound quality, retaining the complete original signal source.\u003cbr\u003e\u003cbr\u003eProduct parameters\u003cbr\u003e\u003cbr\u003eInput\/output impedance: 10KΩ - 50KΩ\u003cbr\u003e2 in 2 out switchover, unbalanced RCA connector and balanced XRL connector for input\/output\u003cbr\u003eInput: unbalanced RCA connector \/ balanced XLR connector (convert selection)\u003cbr\u003eOutput: unbalanced RCA connector \/ balanced XLR connector (convert selection)\u003cbr\u003eProduct net weight: 0.32 kg\u003cbr\u003eProduct package weight: 0.42 kg\u003cbr\u003eProduct dimensions: length 145mm X width 65mm X height 43mm\u003cbr\u003ePackaging dimensions: length 200mm X width 180mm X height 55mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eKit list\u003cbr\u003e\u003cbr\u003e1 X A977 2 In and 3 Out Switcher Full-balance Passive Preamp Active Speaker Double Sound Source Volume Controller","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629268201819,"sku":"SYA002128","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA002128.jpg?v=1773977634"},{"product_id":"pre-amplifier-speaker-distributor-2-in-8-out-switcher-speaker-comparator-signal-booster-with-volume-control-and-earphone-16-600-ohms-monitor-function-2-channel-signal-switching-input","title":"Pre-Amplifier Speaker Distributor, 2 In 8 Out Switcher, Speaker Comparator, Signal Booster, With Volume Control And Earphone 16-600 ohms \/ Monitor Function 2-Channel Signal Switching Input","description":"Product function introduction \u003cbr\u003e1. The B981 is a powerful 8-channel high-power pre-amplifier which has dual-sound input with a selector switch.  \u003cbr\u003e2. The product provides an independent 3.5mm stereo earphone jack which can drive a variety of high-impedance professional monitor earphones well.  \u003cbr\u003e3. Each channel can drive 16ohm -600 ohm and provide 8 stereo channels for output.  \u003cbr\u003e4. There are four independent volume knob adjustments to control the 8-channel for simultaneous level signal output, presenting the rich sound quality, well-balanced bass, clear high frequency, and no other signal popping phenomenon, and ensuring lossless and undistributed sound.  \u003cbr\u003e5. It can provide +20dB high gain through any line level signal source, allowing running through longer cable lines or \"buffering\" to solve low volume problems.  \u003cbr\u003e6. You can use the product to connect line level signal source and power amplifier as a volume controller.  \u003cbr\u003e7. The RCA socket can match almost all other product interfaces. The product is powered by an AC AC9V transformer. \u003cbr\u003e \u003cbr\u003eProduct parameters \u003cbr\u003e1. Input impedance: 100K Ohm \u003cbr\u003e2. Input level: +14 dBV \u003cbr\u003e3. Output impedance: 47 Ohm per output channel \u003cbr\u003e4. Frequency response: 20 Hz - 20K Hz \u003cbr\u003e5. Signal to noise ratio: Above 107dB \u003cbr\u003e6. Total harmonic distortion: Less than 0.08% \u003cbr\u003e7. Inter-modulation distortion: Less than 0.01% \u003cbr\u003e8. Signal input: Two sets of stereo RCA socket \u003cbr\u003e9. Signal output: Six sets of stereo RCA connectors and two sets of 3.5mm stereo earphone jack \u003cbr\u003e10. Product power supply: AC 9V-12V \u003cbr\u003e11. 4 independent channel stereo level volume output controlling knobs \u003cbr\u003e12. Product net weight: 0.68kg \u003cbr\u003e13. Packaged product weight: 0.82g \u003cbr\u003e15. Product dimensions: Length 145mm x width 112mm x height 42mm \u003cbr\u003e16. Packing dimensions: Length 260mm x width 185mm x height 65mm \u003cbr\u003e \u003cbr\u003eKit list \u003cbr\u003e1. B981 Professional 8-channel preamp signal-amplifier speaker distributor  x 1 \u003cbr\u003e2. AC9V Power adapter (US standard) line length 100CM x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629268267355,"sku":"SYA002129","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA002129.jpg?v=1773977649"},{"product_id":"buzz-eliminator-ground-circuit-eliminator-to-eliminate-buzz-sound","title":"Buzz Eliminator, Ground Circuit Eliminator to Eliminate Buzz Sound","description":"【Product Details】\u003cbr\u003e\u003cbr\u003e\"No-Hum AC Hum Eliminator\u003cbr\u003eEasy to Use, just Plug it In!\u003cbr\u003eSmall and Light, Very Portable\u003cbr\u003eLED Indicator\u003cbr\u003eSuitable for use on 120V 60Hz grounded USA-style power outlets\u003cbr\u003eThe No-Hum is specifically designed to eliminate ground-related Hum\u003cbr\u003eand Buzz issues, quickly and easily.\u003cbr\u003eSimply plug it in, and it filters low voltage from the ground line that causes audio ground loop hum and buzz! Note that the Hum maintains a SAFE ground --\u003cbr\u003eNOT a ground lift! The No-Hum does not manipulate voltage in any way,\u003cbr\u003eand will not affect sonic quality of audio gear.\u003cbr\u003eThe No-Hum is not designed to solve cable or pickup related noise.\u003cbr\u003eSimply place the No-Hum on the power cord of offending equipment to get rid\u003cbr\u003eof hum and buzz. A built-in LED indicator shows that the No-Hum is working.\u003cbr\u003eThe No-Hum is suitable for use on equipment up to but not exceeding 6 amps of current draw.\"\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e【Product features】\u003cbr\u003e\u003cbr\u003eNo-Hum AC Hum Eliminator\u003cbr\u003eEasy to Use, just Plug it In!\u003cbr\u003eSmall and Light, Very Portable\u003cbr\u003eLED Indicator\u003cbr\u003eSuitable for use on 120V 60Hz grounded USA-style power outlets\u003cbr\u003eProduct net weight: 0.18 kg\u003cbr\u003eProduct weight after packing: 0.23kg\u003cbr\u003eProduct size: length:80mm X width:44mm X height:32mm\u003cbr\u003ePacking size: length:90mm X width:82mm X Height:57mm\u003cbr\u003e\u003cbr\u003e  \u003cbr\u003e\u003cbr\u003e【Packing list】 \u003cbr\u003e\u003cbr\u003e1 X B983—AC ground circuit buzz eliminator\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629268791643,"sku":"SYA002130","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA002130.jpg?v=1773977662"},{"product_id":"iwistao-hifi-tube-earphone-amp-1w-output-32-to-600-ohm-class-a-tube-amplifier-2x8w-6n2-drive-fu19-built-6-5mm-jack","title":"IWISTAO HIFI Tube Earphone Amp 1W output 32 to 600 ohm \u0026 Class A Tube Amplifier  2X8W 6N2 Drive FU19 Built 6.5mm Jack","description":"Package:Yes \u003cbr\u003ePCM:No \u003cbr\u003eBuilt-in Battery:No \u003cbr\u003eChannels:2 (2.0) \u003cbr\u003eOutput Power: 1W \u003cbr\u003eRecommended Headphone Impedance: 501-600 Ohm \u003cbr\u003eInput Type: LINE IN (AUDIO IN) \u003cbr\u003eOutput Type: LINE OUT (AUDIO OUT) \u003cbr\u003eDSD (Direct Stream Digital):No \u003cbr\u003eBluetooth:No \u003cbr\u003eBrand Name:IWISTAO \u003cbr\u003eDimensions (WxHxD):320 mm* 180 mm * 160 mm \u003cbr\u003eWIFI: No \u003cbr\u003eType: Professional Amplifier \u003cbr\u003eEarphone amplifier output: 1W \u003cbr\u003eOutput impedance of Earphone amplifier:32 ~ 600 ohm \u003cbr\u003eOutput power of tube amp:2 x 8W (4 ohm) \u003cbr\u003eFrequency response: 26-38 KHz +\/- 2dB \u003cbr\u003eTotal harmonic distortion: Less than 0.008% (10Hz to 20 kHz) \u003cbr\u003eSignal to Noise Ratio: Greater than 118dB (A weight) \u003cbr\u003eNet weight (W*D*H):6.2kg \u003cbr\u003eOperating voltage:110 ~ 240V \/ 50 ~ 60 Hz \u003cbr\u003eOutput Type:RCA\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629276885339,"sku":"TBD000314","price":284.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD000314.jpg?v=1773978085"},{"product_id":"linepaudio-a977-2-in-2-out-switcher-full-balance-passive-preamp-active-speaker-double-sound-source-volume-controller-a977","title":"LINEPAUDIO A977 2 In 2 Out Switcher Full-balance Passive Preamp Active Speaker Double Sound Source Volume Controller, A977","description":"Product Functions\u003cbr\u003e1. A977 passive preamp active speaker volume dual-channel controller is small in size and suitable for active speakers or preamp\/post-amp, it supports full-balance or input and output of single-ended signal. The product has functions of independent L\/R channel volume adjustment, 2 signals input and 2 signals output. It provides balanced XLR and unbalanced RCA connectors which are automatically converted to each other, with a selector switch facilitates the signal switch of input\/output.\u003cbr\u003e2. Small size, big intelligence. The product is of small size, but has well-function connecters. It is suitable for decoders and speakers without volume adjustment. the product has the design of balanced input\/output and RCA input\/output architecture, with switching function. The operation of the product will not cause loss of signal source. Generally, the audio signal released from the decoder is the original sound source signal. Great dynamics will not cause loss of sound quality, retaining the complete original signal source.    \u003cbr\u003e       \u003cbr\u003eSpecification\u003cbr\u003e1. Input\/output impedance: 10KΩ - 50KΩ\u003cbr\u003e2. 2 in 2 out switchover, unbalanced RCA connector and balanced XRL connector for input\/output\u003cbr\u003e3. Input: unbalanced RCA connector \/ balanced XLR connector (convert selection)\u003cbr\u003e4. Output: unbalanced RCA connector \/ balanced XLR connector (convert selection)\u003cbr\u003e5. Product net weight: 320g\u003cbr\u003e6. Product dimensions: length 145mm x width 65mm x height 43mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"A977","offer_id":52629320597851,"sku":"ZY17279719B","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY17279719B.jpg?v=1773980029"},{"product_id":"linepaudio-b982-power-amplifier-instrument-drummer-earphone-monitor-signal-amplifier-dual-xlr-input-b982","title":"LINEPAUDIO B982 Power Amplifier Instrument Drummer Earphone Monitor Signal Amplifier, Dual XLR Input, B982","description":"Product Details\u003cbr\u003ePersonal in-ear monitor amplifier, in-ear monitor amplifier for personal monitor applications，\u003cbr\u003ehigh power and \"drummer proof\" headphones output, dual XLR inputs allow for 2-channel mono or stereo operation, switchable stereo\/mono operation with mix function, level and balance\/mix controls, runs up to 12 hours on a 9V battery(not included), battery control with dual LED indicators, operates on DC 9V power supply (included), integrated current limit protects your ears and headphone.       \u003cbr\u003e       \u003cbr\u003eSpecification\u003cbr\u003e1. Input: 2 x XLR connector,balanced\u003cbr\u003e2. Output: 6.35mm and 3.5mm TRS connector\u003cbr\u003e3. Input impedance: 20K ohm\u003cbr\u003e4. Output impedance: 10K ohm per channel\u003cbr\u003e5. Frequency response: 20 Hz-80K Hz(+\/-0.5 dB)\u003cbr\u003e6. THD + N: 0.01%\u003cbr\u003e7. Signal-to-noise ratio: \u0026gt;90 dB(A-weighted)\u003cbr\u003e8. CMRR: \u0026gt;50 dB\u003cbr\u003e9. Crosstalk: \u0026gt;40dB\u003cbr\u003e10. System Data\u003cbr\u003e- Normal input level: 2 dBu\u003cbr\u003e- Max input level: 6 dBu\u003cbr\u003e- Limit input level: 7 dBu\u003cbr\u003e- Max output level: 9.5 dBu\u003cbr\u003e11. Indicators\u003cbr\u003e- LEDs: Power indicator(green)，battery control indicator(red)\u003cbr\u003e- Voltage: Green LED lit：voltage\u0026gt;7.3V，Both green and red LED lit：voltage = 6.8-7.3V，Red - LED lit: Voltage\u0026lt;6.8V\u003cbr\u003e12. Battery: 9V block alkaline or 8.4V NIMH rechargeable battery\u003cbr\u003e13. Power adapter: Ext. input power DC 9V (pin = pos，ring = neg)\u003cbr\u003e14. Standby power consumption: 300 mW\u003cbr\u003e15. Max operation current: 90 mA\u003cbr\u003e16. Max output power into 20 ohm: 40 mW per channel\u003cbr\u003e17. Product net weight: 0.32kg\u003cbr\u003e18. Product size: length: 105mm x width: 103mm x height: 43mm","brand":"GadgetHQ","offers":[{"title":"B982","offer_id":52629320794459,"sku":"ZY17282782B","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY17282782B.jpg?v=1773980044"},{"product_id":"linepaudio-b983-ac-ground-circuit-no-hum-buzz-eliminator-us-plug-b983","title":"LINEPAUDIO B983 AC Ground Circuit No-Hum Buzz Eliminator, US Plug, B983","description":"Product Details \u003cbr\u003e1. No-Hum AC hum eliminator \u003cbr\u003e2. Easy to use, just plug it in! \u003cbr\u003e3. Small and light, very portable, LED indicator \u003cbr\u003e4. Suitable for use on 120V \/ 60Hz grounded USA-style power outlets \u003cbr\u003e5. The No-Hum is specifically designed to eliminate ground-related Hum and Buzz issues, quickly and easily.  \u003cbr\u003e6. Simply plug it in, and it filters low voltage from the ground line that causes audio ground loop hum and buzz! Note that the Hum maintains a SAFE ground - NOT a ground lift!  \u003cbr\u003e7. The No-Hum does not manipulate voltage in any way, and will not affect sonic quality of audio gear.  \u003cbr\u003e8. The No-Hum is not designed to solve cable or pickup related noise. \u003cbr\u003e9. Simply place the No-Hum on the power cord of offending equipment to get rid of hum and buzz.  \u003cbr\u003e10. A built-in LED indicator shows that the No-Hum is working.  \u003cbr\u003e11. The No-Hum is suitable for use on equipment up to but not exceeding 6 amps of current draw.  \u003cbr\u003e \u003cbr\u003eSpecification \u003cbr\u003e1. Product net weight: 0.18 kg \u003cbr\u003e2. Product size: length: 80mm x 44mm x 32mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B983","offer_id":52629320827227,"sku":"ZY17284777B","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY17284777B.jpg?v=1773980052"},{"product_id":"3-input-3-output-power-amplifier-and-speaker-switcher-speaker-switch-splitter-comparator-b036","title":"3 Input 3 Output Power Amplifier And Speaker Switcher Speaker Switch Splitter Comparator, B036","description":"Product presentation:\u003cbr\u003eDo you have 3 power amplifiers and 3 sets of speakers that need to be connected to each other?\u003cbr\u003eDo you need 3 amplifiers and 3 sets of speakers to get stuck?\u003cbr\u003eA powerful amplifier and audio switcher can solve these problems,\u003cbr\u003e\u003cbr\u003e1. 3 power amplifiers push-button select switch input,3 sets of stereo speakers push-button select switch output (3 sets of speakers can be opened or closed independently)\u003cbr\u003e2. 3 sets of stereo speakers can sound at the same time, you can also turn off one group of speakers or more groups of speakers individually, manually select the pushbutton switch\u003cbr\u003e3. The maximum power of each channel is 300W\u003cbr\u003e4. Signal input provides vacuum tube power amplifier signal no-load protection function\u003cbr\u003e5. manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise\u003cbr\u003e6. Compact design of solid metal shell, easy installation, the product does not need external power\u003cbr\u003e7. Simple installation: input and output plug and play easy installation, you can enjoy different audio experience\u003cbr\u003e\u003cbr\u003eProduct Parameter:\u003cbr\u003e1. Compatible with all types of power amplifiers and speakers\u003cbr\u003e2. Input\/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port\u003cbr\u003e3. Connect the power amplifier to amplifier 01-02-03\u003cbr\u003e4. Connect the loudspeaker to position A-B-C respectively\u003cbr\u003e5. Turn on your power amplifier stereo device and the product requires no external power supply\u003cbr\u003e6. Input:3 sets of inputs (banana plug)\u003cbr\u003e7. Output:3 sets of output (banana plug)\u003cbr\u003e8. Power: up to 300W\u003cbr\u003e9. Metal material, fine steel housing, compact size suitable for any system\u003cbr\u003e10. Channel Power: Each channel supports up to 300W of power\u003cbr\u003e11. Frequency response: 10Hz-50KHz\u003cbr\u003e12. Net weight :0.96 kg\u003cbr\u003e13. Packed weight :1.13 kg\u003cbr\u003e14. Product size: length 240mm X width 105mm X height 55mm\u003cbr\u003e15. Packing size: length260mm X width 185mm X height 65mm\u003cbr\u003e16. Kit list: 3 input 3 output power amplifier and sound switcher loudspeaker switch distributor x 1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"B036","offer_id":52629323186523,"sku":"SYA0021935","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/SYA0021935.jpg?v=1773980298"},{"product_id":"fx-audio-dac-x6-fever-hifi-fiber-coaxial-usb-amp-digital-audio-dac-decoder-24bit-192","title":"FX-AUDIO DAC-X6 Fever HiFi Fiber Coaxial USB Amp Digital Audio DAC Decoder 24BIT\/192","description":"\u003cul class=\"productAttributesList\"\u003e\n\u003cli\u003e\n\u003cspan\u003eInput Type:\u003c\/span\u003e\u003cspan\u003eUSB,COAXIAL,OPTICAL\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eModel Number:\u003c\/span\u003e\u003cspan\u003eDAC-X6\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSignal To Noise Ratio:\u003c\/span\u003e\u003cspan\u003e105\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eApplicable voltage:\u003c\/span\u003e\u003cspan\u003e100V-240V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e1. Standard Input Interface: PC USB \/ coaxial, fiber optic (with toggle switch)\u003cbr\u003e2. Standard output interface: 6.35mm headphone output base line standard RCA connectors\u003cbr\u003e3. Color: Black, silver\u003cbr\u003e4. Line level output: RMS 2V\u003cbr\u003e5. Output power: 90mw \/ 600ohm, 180mw \/ 300ohm, 450mw \/ 100ohm, 610mw \/ 62ohm, 910mw \/ 32ohm, 1000mw \/ 16ohm\u003cbr\u003e6. SNR: \u0026gt;=105dB\u003cbr\u003e7. Frequency response: 20hz-20khz\u003cbr\u003e8. Adapter Voltage: 100-240ACV\u003cbr\u003e9. Machine power \/ adapter output voltage: Dc12V 1A above\u003cbr\u003e10. Machine dimensions: 146mm x 98mm x35mm (including protruding parts), weight: 500g\u003cbr\u003e11. High resolution, under a wide range of frequency support 24BIT 44.1K-96k.\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Silver","offer_id":52629331018075,"sku":"TBD047817801A","price":147.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":52629331050843,"sku":"TBD047817801B","price":147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD047817801A.jpg?v=1773981022"},{"product_id":"sienwiny-ys-kl5-bluetooth-5-3-dual-channel-tpa3255-chip-600w-high-power-hifi-digital-amplifier-eu-plug-us-plug","title":"Sienwiny YS-KL5 Bluetooth 5.3 Dual-Channel TPA3255 Chip 600W High-Power HiFi Digital Amplifier, EU Plug, US Plug","description":"\u003cbr\u003e1. Output power: 300W + 300W\u003cbr\u003e2. Frequency range: 20Hz–20kHz\u003cbr\u003e3. Bluetooth version: V5.3 (15m range)\u003cbr\u003e4. Signal-to-noise ratio: ≥98dB\u003cbr\u003e5. Audio inputs: Bluetooth + USB + AUX\u003cbr\u003e6. Audio outputs: 2.0 + SUB OUT (subwoofer support)\u003cbr\u003e7. Amplifier chip: TPA3255\u003cbr\u003e8. Distortion: ≤0.5% THD\u003cbr\u003e9. Housing material: zinc alloy (A+ drop-proof rating)\u003cbr\u003e10. Speaker impedance: 2-8 ohms\u003cbr\u003e11. Input power: DC 24-36V (higher voltage yields greater output power)\u003cbr\u003e12. Size: about 14 x 10.9 x 3.4cm\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003e1. High-fidelity HI-FI amplifier technology amplifies source signals for authentic sound reproduction\u003cbr\u003e2. Dual-channel 600W high-power output faithfully restores audio details, delivering ultimate HIFI sound quality\u003cbr\u003e3. Professional-grade ТРА3255 amplifier chip\u003cbr\u003e4. DSP digital audio algorithms for intelligent sound tuning\u003cbr\u003e5. Bluetooth V5.3 with up to 15-meter range for faster, more stable, and energy-efficient connections\u003cbr\u003e6. Equipped with RCA coaxial, AUX, USB, and SUB-OUT ports. Supports Bluetooth wireless connection and direct connection to TVs, CD players, turntables, and subwoofers\u003cbr\u003e7. Zinc alloy housing, meticulously crafted through a 6-layer process for corrosion and oxidation resistance\u003cbr\u003e8. Multi-layered hardware and software protection for worry-free use","brand":"GadgetHQ","offers":[{"title":"EU Plug","offer_id":52629763752283,"sku":"TBD0606692201","price":81.99,"currency_code":"USD","in_stock":true},{"title":"US Plug","offer_id":52629763785051,"sku":"TBD0606692202","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606692201.jpg?v=1773993839"},{"product_id":"5-pcs-car-double-terminals-red-black-hexagon-connector-amplifier-terminal-speaker-plug-jack","title":"5 PCS Car Double Terminals Red Black Hexagon Connector Amplifier Terminal Speaker Plug Jack","description":"1. Durable and reliable. \u003cbr\u003e2. Plug and play. \u003cbr\u003e3. Connect method: With 4 mm banana plug connection; also direct crimping; 3mm binding post crimping hole; Diameter fo 2 panel holes: 12mm; 19mm hole space; 42mm long,  5mm screw shaft diameter, 19mm pitch; \u003cbr\u003e4. Can be installed on panel within 5mm. \u003cbr\u003e5. Material: alloy + ABS\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52632172069211,"sku":"CMS9811","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/CMS9811.jpg?v=1774013381"},{"product_id":"xh-m543-120w-120w-dual-channel-stereo-high-power-digital-tpa3116d2-audio-power-amplifier-board-120w-120w-dual-channel-audio-amplifier","title":"XH-M543 120W+120W  Dual-channel Stereo High Power Digital TPA3116D2 Audio Power Amplifier Board, 120W+120W Dual-channel Audio Amplifier","description":"\u003cul class=\"productAttributesList\"\u003e\n\u003cli\u003e\n\u003cspan\u003eChannels:\u003c\/span\u003e\u003cspan\u003e2 (2.0)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eType:\u003c\/span\u003e\u003cspan\u003eHome Amplifier\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e1. Product Name: TPA3116D2 digital amplifier \u003cbr\u003e2. Product Type: XH-M543\u003cbr\u003e3. Amplifier chip: TPA3116D2*1\u003cbr\u003e4. Power supply: DC12-26V (24V recommended)\u003cbr\u003e5. Current: more than 3A\u003cbr\u003e6. Max output power: 120W *2 \u003cbr\u003e7. Channel: Two channel\u003cbr\u003e8. Signal to noise ratio: 100db\u003cbr\u003e9. Size: 92*69*18MM\u003cbr\u003e10. Power supply DC12V 50W * 2\u003cbr\u003e11. Power supply DC24V 120W * 2\u003cbr\u003e12. Note: Red is positive, and Black is negative! \u003cbr\u003e13. TPA3116D2 digital power amplifier board, with dual channel, high power, shock volume; power supply voltage is DC12-26V, 24V is recommended, it also has an op amp function, after the sound source is input, enter the boards op amp chip TL074C to zoom in, so that The volume is even more shocking.\u003cbr\u003e \u003cbr\u003eOperation instructions:\u003cbr\u003e1. Connect the power input terminal to the DC12V—26V power supply (24V is recommended);\u003cbr\u003e2. Connect the audio input to a sound source, such as an MP3, mobile phone, computer, etc.\u003cbr\u003e3. Connect the audio output to the speaker, pay attention to the positive and negative, it is recommended to connect more than 120W professional stage speakers, in order to play its effect.\u003cbr\u003e\u003cbr\u003ePackage included:\u003cbr\u003e1 x TPA3116D2 2*120W Dual-channel High Power Digital Power Amplifier Board\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"120W+120W Dual-channel Audio Amplifier","offer_id":52632896504155,"sku":"TBD0624382","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0624382.jpg?v=1774024229"},{"product_id":"811bt-12v-2-x-20w-amplifier-bluetooth-mp3-decoding-board","title":"811BT 12V 2 x 20W Amplifier Bluetooth MP3 Decoding Board","description":"\u003cbr\u003e1. Bluetooth version: 5.0\u003cbr\u003e2. Support call (long press the pause button to answer the call when there is an incoming call)\u003cbr\u003e3. Support 3.5MM head microphone function\u003cbr\u003e4. Support recording, recording supports operation in TF\/USB mode (long press the remote control MODE button to start recording, long press the remote control PLAY button to switch between recording and music playback. when recording, you need to connect a storage device, U disk or TF card)\u003cbr\u003e5. Support power off memory\u003cbr\u003e6. Power supply voltage: support DC 6-18V, current 1-3A\u003cbr\u003e7. Can be directly connected to speakers, with power amplifier and decoding functions\u003cbr\u003e8. Support song format: MP3 \/WMA \/ WAV \/ APE \/ FLAC\u003cbr\u003e9. Main function: MP3\/USB\/TF\/LINE IN\/FM\/BLUETOOTH\/remote control (you need to bring your own CR2402 button battery)\u003cbr\u003e10. Power: 40W\u003cbr\u003e11. Supports folder selection and playback: When USB or TF is playing, there is a folder in the device and there are songs in the folder. Press the previous button or the next button twice to select the folder to play the song, and the screen will display accordingly\u003cbr\u003e12. Size: about 9.3x2.5cm\u003cbr\u003e13. Weight: about 38g\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52633075024219,"sku":"TBD0601753301A","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0601753301A.jpg?v=1774027563"}],"url":"https:\/\/www.gadgethq.co\/collections\/amplifier.oembed","provider":"GadgetHQ","version":"1.0","type":"link"}