Amplifier

Do you have trouble at that how to connect 6 sets signal source output and 4 sets equipment?Do 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?One strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out,1. 6 sets input adopt 6 gears mechanical switch manually shift, gears switch will not generate burst sound when shifting2. 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.3. Simple installation: Input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experience4. 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.5. 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.Product Parameter1. Material: Metal2. Interface: RCA interface3. Power supply: USB 5V supply power4. Input and output impedance: 10Kohms - 50Kohms5. Frequency responding: 20Hz - 20kHz6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 0dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: standard RCA interface11. Input passageway: 6 sets stereophonic shift input12. Output passageway: 4 sets stereophonic switch select output (able to start at the same time or close independently)13. Control switch: 6 gears shift switch and 4 sets switches, accurately select the manually shift switch14. Input select shift passageway: 6 passageways15. Output select shift passageway: 4 passageways16. Single product net weight: 0.37 kg17. Product size: Length 162mm x width 63mm x height 38mmKit list1. B049 6 in 4 out audio frequency signal select and switch distribute device x 12. USB power supply wire (wire length 100cm) x 1

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Product description:1. 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.2. 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.3. 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.Product parameters:1. Input impedance: 100K Ohm2. Input level: +14 dBV3. Output impedance: 47 Ohm per output channel4. Frequency response: 20 Hz-20K Hz5. SNR: Less than 107dB6. Total harmonic distortion: Above 0.02%7. Intermodulation distortion: Above 0.01%8. I/O interface: Stereo RCA9. Power supply: DC-12V10. Net weight: 0.31 kg11. Product weight after packaging: 0.46kg12. Product size: length 109 mm x width 79mm x height 38 mm13. Package size: length 185mm x width 135mm x height 65mmKit list:1. 1 in-4 out-front Stereo Signal Amplifier Allocator x 12. DC-12V Power Adapter (gauge American) wire length: 100cm

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Product description：1. External power amplifier rear passive speakers left and right sound channel double knob independent volume adjustment control box2. Each channel supports 150 watts of processing power3. Independent control of stereo channel (Left track and right track)4. Volume control knob, clean, smooth volume adjustment can be achieved.5. Input/output：Use screw type connector terminals6. 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.7. 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. 8. There is a separate volume knob switch, metal construction, brief outward and Compact Size.Product parameters：1. Power processing: Each audio/speaker channel 150 watts2. Support soundtrack: Stereo left and right channels3. Support impedance: 4-16ohm4. Speaker cable support: 14 wire gauge（14 AWG）5. Support interface: Input/Output, using screw type connector terminals 6. Volume adjustment: Left and right sound channel independent volume size adjustment7. Net Weight: 0.7 kg8. Packed weight: 0.8kg9. Product size: Length 150mm x Width 68mm x Height 55mm10. Package size: Length 185mm x Width 135mm x Height 65mm11. Kit list: Passive loudspeaker volume control box x 1

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Channels:2 (2.0) Type:Home Amplifier 1. Product Name: TPA3116D2 digital amplifier 2. Product Type: XH-M5433. Amplifier chip: TPA3116D2*14. Power supply: DC12-26V (24V recommended)5. Current: more than 3A6. Max output power: 120W *2 7. Channel: Two channel8. Signal to noise ratio: 100db9. Size: 92*69*18MM10. Power supply DC12V 50W * 211. Power supply DC24V 120W * 212. Note: Red is positive, and Black is negative! 13. 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. Operation instructions:1. Connect the power input terminal to the DC12V—26V power supply (24V is recommended);2. Connect the audio input to a sound source, such as an MP3, mobile phone, computer, etc.3. 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.Package included:1 x TPA3116D2 2*120W Dual-channel High Power Digital Power Amplifier Board

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1. Easily fit into the smallest of pockets and works with all your music devices, allowing you to carry it with you anywhere walking, jogging and cycling, or travelling on the bus, train and plane. Now for the first time you can conveniently enjoy Hi-end sound on your smart phone, MP3 player, tablet, laptop or PC. 2. Simply connect the headphone Amp between your headphones and your music player to enjoy great quality sound. It has more than 5 times the output power and half the output impedance of a regular phone, which means the sound wont distort no matter what headphones or volume you use. 3. Portable headphone equalizer is a link between your music player and your headphones. It is a tiny amplifier which can produce the kind of premium quality audio that you expect from hi-end audio equipment used by audiophiles and sound producers. This is the high-fidelity sound provides. 4. It can compatible with headphones, portable speakers, MP3, MP4 ,Mobile Phone, Computer, car stereos, and other audio devices that use 3.5 mm plug connectors. 5. The device is with long standby time, automatically loading detection function, there is no power button. 6. When the headset plugged in, the device will power up then the system automatically boots. 7. When the headset pulled out, the device will automatically shut off. 8. If the internal better voltage is less than 2.5V, the protection of system will automatically shut off the power supply. 9. Frequency: 2-27KHz. 10. Noise ratio: 95DB. 11. Dynamic range: 90DB. 12. Resolution: 70DB. 13. Size: 5.5x2.2x1cm.

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Do you have trouble at that how to connect 6 sets power amplifier and 2 sets loudspeakers?Do you have trouble at that shift select 6 sets power amplifier to make 2 sets loudspeaker sounding at the same time?One strong power amplifier and loudspeaker distribute device able to solve the above problems,1. 6 sets power amplifier key type switch select output, 2 sets stereophonic loudspeaker key type switch select output (2 sets loudspeakers able to be independently start or close)2. 6 sets input adopt 6 gears mechanical switch manually shift, gears switch will not generate burst sound when shifting3. 2 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.4. Input passageway support up to 300W power amplifier and all types loudspeakers from 4 ohm to 16 ohm.5. Signal input provide electric tube power amplifier signal idle protect function.6. Input and output manually select switch, able to be used once inserted, stably shift signal, not generate any disturb or noise among the passageways.7. Compact design and solid metal shell, simple installation, the product neednot additionally connect power supply.8. Simple installation: Input and output, able to be used once inserted, convenient to install, then can enjoy different hearing experienceProduct Parameter1. Interface: Banana type plug2. Power supply: No need additionally connect power supply, able to be used once inserted3. Compatible all types power amplifiers and loudspeakers4. Input\output accept the heavy type loudspeaker wire or loudspeaker pin wire through terminal.5. Connect the power amplifier to AMP - 1-2-3-4-5-6 position.6. Connect the loudspeaker to SPKR - A and B position respectively.7. Input passageway: 6 sets power amplifier input (banana type plug)8. Output passageway: 2 sets loudspeaker output (banana type plug)9. Power: input passageway support 300W10. Metal materials, fine steel shell, compact size suitable to any system.11. Passageway power: Input passageway support up to 300W.12. Frequency responding: 10Hz - 50KHz.13. Single product net weight: 1.21 kg14. Product size: 320mm x 110mm x 62mm

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Do you have trouble at that how to connect 2 sets stereophonic signal source and 8 sets output equipment?Do 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?One strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out,1. 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.2. 2 sets input able to start at the same time and mix together to input, also able to close one set independently,3. 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,4. 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 experienceProduct Parameter1. Material: Metal2. Interface: RCA interface3. Power supply: USB 5V supply power4. Input and output impedance: 10K ohms - 50K ohms5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 15dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: Standard RCA interface11. 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)12. Output passageway quantity: 8 sets stereophonic shift input (able to start at the same time and close independently)13. Control switch: Input and output adopt self lock switch, accurately select manually shift14. Input shift passageway: 2 passageways15. Output shift passageway: 8 passageways16. Single product net weight: 0.45 kg17. Product size: 167mm x 81mm x 38mmKit list1. B062 2 in 8 out audio frequency signal select shift device x 12. USB power supply wire (wire length 100cm) x 1

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Product presentation:Do you have 3 power amplifiers and 3 sets of speakers that need to be connected? Do you need three power amplifiers and three sets of speakers?A powerful power amplifier and speaker switcher can solve these problems,1. 3 power amplifiers rotary gear switches select to switch inputs,2. 3 sets of stereo speaker rotary gear switch select to switch output,3. The maximum power of each channel is 300W4. The input and output are manually switched, and the switching signal is stable, and there is no other interference or noise between channels5. Compact design solid metal housing, easy installation, products without external power supply6. Simple installation: Input/output plug and play convenient installation, you can enjoy a different audio experienceProduct Parameter:1. Compatible with all types of power amplifiers and speakers2. Input/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port3. Connect the power amplifier to the switch box at position 01-02-03.4. Connect the speakers to positions A-B-C on the switching box.5. Turn on your power amplifier stereo device and the product requires no external power supply6. Input: 3 sets of inputs (banana plug)7. Output: 3 sets of output (banana plug)8. Power: Up to 300W9. Metal material, fine steel housing, compact size suitable for any system10. Channel Power: Each channel supports up to 300W of power11. Frequency response: 10Hz-50KHz12. Net weight: 0.85 kg13. Packed weight: 1.02 kg14. Product size: Length 240mm X width 90mm X height 55mm15. Packing size: Length260mm X width 185mm X height 65mm16. Packing List: 3 input 3 output power amplifier and sound switcher loudspeaker switch distributor x 1

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1. Material: metal2. Input type: LINE IN (O IN)3. Output type: LINE OUT (O OUT)4. Built-in battery: None5. Recommended headphone impedance: 65-80 ohms (MAX)6. Type: mini amplifier7. Power adapter: US standard8. Ultra-compact stereo headphone amplifier for studio and stage applications.9. 8 headphone output channels and 1 input channel10. The volume of each output channel can be controlled independently11. Ultra-low noise 4580 operational amplifier with excellent performance12. Comes with DC 12V power adapter13. Product size: approximately 19.6x5.7x3.1cm14. Product weight: 350gPacking list:Amplifier x 1Power adapter x 1English manual x 1Only the above package contents, other products are not includedNote: different lighting and monitors may cause the color of the item in the picture to be slightly different from the actual item, measurement tolerance is +/- 1- 3cm

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Product Functions1. 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.2. 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. Specification1. Input/output impedance: 10KΩ - 50KΩ2. 2 in 2 out switchover, unbalanced RCA connector and balanced XRL connector for input/output3. Input: unbalanced RCA connector / balanced XLR connector (convert selection)4. Output: unbalanced RCA connector / balanced XLR connector (convert selection)5. Product net weight: 320g6. Product dimensions: length 145mm x width 65mm x height 43mm

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B026 – 6 Input 2 Output Or 2 Input 6 Output Audio Signal Source Selection Switcher RCA PortProduct description:6 input 2 output or 2 output 6 input stereo audio signal selection switcher, with RCA port designThe produce adopts passive design, with direct insertion, and has lossless switched transmission of input and output signals,The 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,The 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.The product uses standard RCA port design for input and output, and uses precise 6-level and 2-level manual switch design for the switcher, Product parameters:Power supply: passive design, direct insertionMaterial: all-metal caseInput and output impedance: 10KΩ - 50KΩFrequency response: 20 – 20 kHzDistortion: <0.002%Insertion loss: <0.01dBSignal gain: 0dBSignal to noise ratio S/N: >98dBInput port: standard RCA portOutput port: standard RCA portNumber of input channels: 6-channel stereo input (reverse 6-channel switched output)Number of output channels: 2-channel stereo output (reverse 2-channel switched input)Control switch: 6-level and 2-level precise manual selection switchInput switching channel: 6 channelsOutput switching channel: 2 channelsNet weight: 0.26 kgGross weight with packaging: 0.37 kgProduct size: length 122 mm X width 50 mm X height 38 mmPackaging size: length 185mm X width 135mm X height 65mmKit list: 1 X 6 input 2 output or 2 input 6 output stereo audio signal selection switcher RCA port

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Product presentation:1. 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.2. 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.3. 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.4. 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.5. 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.Product Parameter：1. 2 input 1 output amplifier speaker selector switcher2. Convenient audio control accommodates 2 amplifiers with 1 pair of speakers.3. Home theater stereo amplifier system support, independent audio source channel volume control4. Input/output: screw type connector terminal, compact desktop/desktop mini design5. Front panel button control center, the product needs no power supplyBuilt-in electronic overload protection circuit6. Power processing: 200 watts per audio/speaker channel7. Speaker selector type: 2 soundtracks8. Speaker cable support: 14 wire gauge (14 AWG)9. Support impedance: 4-16 ohms10. Frequency response: 20Hz-20kHz11. Net Weight: 1.06 kg12. Packed weight: 1.21 kg13. Product size: Length 160mm x Width103mm x Height 55mm14. Package size: Length 260mm x Width 185mm x Height 65mm15. Kit list: 2 input 1 output amplifier speaker switcher output with volume adjustment function x 1

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Features: The 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.Do you have 2 power amplifiers and 4 sets of speakers that need to be connected to each other?Do you need 2 amplifiers and 4 sets of speakers to get stuck?A powerful amplifier and audio switcher can solve these problems,1. 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)2. 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 switch3. The maximum power of each channel is 300W4. Signal input provides vacuum tube power amplifier signal no-load protection function5. Manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise6. Compact design of solid metal shell, easy installation, the product does not need external power7. Simple installation: input and output plug and play easy installation, you can enjoy different audio experienceProduct Parameter:1. Compatible with all types of power amplifiers and speakers2. Input/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port3. Connect the power amplifier to amplifier A and B4. Connect the loudspeaker to position 1-2-3-4 respectively5. Turn on your power amplifier stereo device and the product requires no external power supply6. Input: 2 sets of inputs (banana plug)7. Output: 4 sets of output (banana plug)8. Power: up to 300W9. Metal material, fine steel housing, compact size suitable for any system10. Channel Power: Each channel supports up to 300W of power11. Frequency response: 10Hz-50KHz12. Product size: length 240mm X width 105mm X height 55mm13. Net weight :0.92 kg14. Kit list: 1 x 2 input 4 output power amplifier switch distributor

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1. Bluetooth version: 5.02. Support call (long press the pause button to answer the call when there is an incoming call)3. Support 3.5MM head microphone function4. 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)5. Support power off memory6. Power supply voltage: support DC 6-18V, current 1-3A7. Can be directly connected to speakers, with power amplifier and decoding functions8. Support song format: MP3 /WMA / WAV / APE / FLAC9. Main function: MP3/USB/TF/LINE IN/FM/BLUETOOTH/remote control (you need to bring your own CR2402 button battery)10. Power: 40W11. 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 accordingly12. Size: about 9.3x2.5cm13. Weight: about 38g

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1. Audio channel: 2.1 channel2. Bluetooth version: 5.03. Audio input: Bluetooth+AUX+U disk+USB sound card4. Audio output: Passive speaker + 3.5mm interface stereo output5. Volume adjustment: Encoder knob adjustment, smooth feel6. Frequency range: 20Hz-30KHz7. Signal to noise ratio: 92dB8. Output power: 50W x 29. Adapted speaker: 10-200W /4/8 ohm10. Output filter: LC filter11. Protection mechanism: Static electricity, overvoltage, undervoltage, overheating, DC detection and short circuit protection12. Adapter power supply: DC 5-26V/5A above13. Function: Support Sinilink APP control14. Size: about 9.5 x 7 x 2.5cm15. Weight: about 130gPacking list:1. Upper cover2. Bare board3. Lower cover4. Knob cap x45. M2x4+3 copper pillar x 46. M2x3 screw x 87. M2x18 copper pillar x 48. DC adapter x 19. Heat sink x 110. Thermally conductive silicone paste x 1

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Do you have trouble at that how to connect 2 sets power amplifier and 8 sets loudspeakers?Do you have trouble at that make 2 sets power amplifier and 8 sets loudspeakers sounding at the same time?One strong power amplifier and loudspeaker distribute device able to solve the above problems,1. 8 sets stereophonic loudspeaker key type switch select output (8 sets loudspeakers able to be independently start or close)2. 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.3. Signal input provide the power amplifier signal idle protect function.4. Adopt convenient snap fastener type wiring terminals, able to accept up to 12AWG loudspeaker wires.5. Input passageway support up to 300W power amplifier and all types loudspeakers from 4 ohm to 16 ohm.6. 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.7. Compact design and solid metal shell, simple installation, the product neednot additionally connect power supply.Product Parameter:1. Material: Metal2. Interface: Snap fastener type wiring terminal3. Power supply: Not need additionally connect power supply, able to be used once inserted4. Compatible all types power amplifiers and loudspeakers5. Connect the power amplifier to A and B position.6. Connect the loudspeaker to 1-2-3-4-5-6-7-8 position respectively.7. Open your power amplifier stereophonic equipment, the product need not additionally connect power supply.8. Input: 2 sets input (wiring terminal)9. Output: 8 sets output (wiring terminal)10. Power: Input passageway support 300W11. Metal materials, fine steel shell, compact size suitable to any system.12. Frequency responding: 10Hz - 50KHz.13. Single product net weight: 0.95 kg14. Weight with package: 1.08 kg15. Product size: Length 335mm x width 95mm x height 45mm16. Packed size: Length 359mm x width 155mm x height 67mm

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Do you have trouble at that how to connect 10 sets stereophonic signal source and 2 sets output equipment?Do you have trouble at that how to connect 2 sets stereophonic signal source and 10 sets output equipment?One strong stereophonic shift distribute device able to solve the problems that multiply equipment plug in and out, double way use.1. 10 sets stereophonic input adopt 10 gears mechanical switch manually shift, gears switch will not generate burst sound when shifting2. 2 sets output switch shift, 2 sets output can’t be output at the same time.3. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experience4. 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.5. 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.6. This product able to realize two operating methods, 10 input 2 output, reversely wiring realize 2 input 10 output, double ways use.Product Parameter:1. Material: metal2. Color: Black3. Interface: RCA interface4. Power supply: No need additionally connect power supply, able to be used once inserted5. Input and output impedance: 10K ohms - 50K ohms6. Frequency responding: 20 - 20kHz7. Distortion: Less than 0.002%8. Output consumption: Less than 0.01dB9. Signal gain: 0dB10. Signal-noise ratio S/N: Greater than 98dB11. Input and output interface: Standard RCA interface12. Input passageway quantity: 10 ways stereophonic select and shift input13. Output passageway quantity: 2 ways stereophonic select and shift output (Can not output at the same time, select 1 in 2 to output)14. Control switch: 10 gears shift switch and 1 set switch, accurately select the manually shift switch15. Input select shift passageway: 10 passageways16. Output select shift passageway: 2 passageways17. Single product net weight: 0.54 kg18. Product size: length 192mm x width 91mm x height 38mm

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1. Mini type stereophonic non source sound mixture is one type stereophonic 8 ways non source sound mixing box2. 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.3. Needn’t additionally connect power supply, 8 sets stereophonic input with independent volume adjustment switch. Output 2 sets select shift switch.4. Sound mixture output able to connect tone tuning table, prepose amplifier, power amplifier and source loudspeaker box, etc.5. 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 experienceProduct Parameter: 1. Material: Metal2. Color: Black3. Interface: RCA interface4. Power supply: Not need additionally connect power supply, able to be used once inserted5. 8 sets stereophonic input with independent volume adjustment6. 2 sets stereophonic select output with switch shift output (select 1 in 2 to output)7. Input impedance: 10Kohms - 47Kohms8. Output impedance: 2.5Kohms - 10Kohms9. Output gain: -12dB (Connect power amplifier\prepose amplifier\tone tuning table\source loudspeaker after sound mixed)10. Single product net weight: 0.42kg11. Product size: length 172mm x width 68mm x height 38mm

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Do you have trouble at that how to connect 4 sets stereophonic signal source and 2 sets output equipment?Do you have trouble at that how to connect 2 sets signal source equipment and 4 sets output equipment?One 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.1. 4 sets stereophonic input, 2 sets stereophonic output adopt digit switch shift and remote control shift, will not generate burst sound when shifting2. Input and output able to be used once inserted, non consumption shift at input and output signal.3. 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.4. 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.5. This product able to realize two operating methods, 4 input 2 output, reversely wiring realize 2 input 4 output, double ways use.1. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption shift, then can enjoy different hearing experienceProduct Parameter1. Material: Metal2. Interface: RCA interface3. Power supply: USB 5V supply power, able to be used once inserted4. Input and output impedance: 10Kohms - 50Kohms5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 0dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: standard RCA gold plating interface11. Input passageway: 4 ways stereophonic shift input (can not mix input at the same time, select 1 in 4 to output)12. Output passageway: 2 ways stereophonic select and shift output (cannot output at the same time, select 1 in 2 to output)13. Control switch method: manually shift, or remote control shift14. Input shift passageway: 4 passageways15. Output shift passageway: 2 passageways16. Single product net weight: 0.35kg17. Product size: length 123mm x width 75mm x height 38mmKit list1. B060--4 in 2 out audio frequency signal select and shift device x 12. USB power supply wire (wire length 100cm) x 13. Remote controller x 1

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Do you have trouble at that how to connect 1 set power amplifier and 8 sets loudspeakers?Do you have trouble at that make 1 set power amplifier and 8 sets loudspeakers sounding at the same time?One strong loudspeaker signal distribute device able to solve the above problems,1. 8 sets stereophonic loudspeaker key type switch select output (8 sets loudspeakers able to be independently start or close)2. 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.3. Signal input provide the power amplifier signal idle protect function.4. Adopt convenient snap fastener type wiring terminals, able to accept up to 12AWG loudspeaker wires.5. Input passageway support up to 300W power amplifier and all types loudspeakers from 4 ohms to 16 ohms.6. 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.7. Compact design and solid metal shell, simple installation, the product no need additionally connect power supply.Product Parameter:1. Material: Metal2. Interface: snap fastener type wiring terminal3. Power supply: No need additionally connect power supply, able to be used once inserted4. Compatible all types power amplifiers and loudspeakers5. Connect the power amplifier to AMP-INPUT position.6. Connect the loudspeaker to 1-2-3-4-5-6-7-8 position respectively.7. Input: 1 set input (wiring terminal)8. Output: 8 sets output (wiring terminal)9. Power: input passageway support 300W10. Metal materials, fine steel shell, compact size suitable to any system.12. Frequency responding: 10Hz - 50KHz.13. Single product net weight: 0.94 kg14. Product size: Length 335mm x width 95mm x height 45mm

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1. 5 sets stereophonic select input (each one set input with independent switch, able to start at the same time and mix together to input, also able to close one set independently)2. 5 sets stereophonic output at the same time (each one set output with independent volume switch adjustment)3. Solve the problem that multiply equipment input and multiply equipment output at the same time.4. 5 sets output sound at the same time and amplify gain +15dB5. 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 experienceProduct Parameter1. Material: Metal2. Interface: RCA interface3. Power supply: USB 5V supply power4. Input and output impedance: 10KΩ - 50KΩ5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: +15dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: Standard RCA interface11. Input passageway quantity: 5 sets stereophonic select input (5 sets input able to start at the same time and mix together to input, also able to close one set independently)12. Output passageway: 5 sets stereophonic output (each one set output with independent volume adjustment)13. Control switch: Input and output adopt self lock switch, accurately select manually shift14. Output select shift passageway: 5 passageways15. Single product net weight: 0.53kg16. Product size: Length 168mm x width 97mm x height 38mmKit list1. B065 5 in 5 out audio frequency signal select sound mixing distribute device x 12. USB power supply wire (wire length 100cm) x 1

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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)2. This type product able to solve that 1 set stereophonic input able to distribute output 4 sets stereophonic,3. Output has volume adjustment function, output without sound amplify function, the output keep the original tone quality and volume same with the input.4. Input and output adopt 3.5mm earphone interface5. 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 experienceProduct Parameter1. Material: metal2. Interface: 3.5mm interface3. Power supply: USB 5V supply power4. Input and output impedance: 10KΩ - 50KΩ5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 0dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: Standard 3.5mm interface11. Input passageway: 1 set stereophonic input12. Output passageway: 4 sets stereophonic output at the same time (4 sets output unified volume adjustment)13. Single product net weight: 0.15 kg14. Product size: 87mm x 52mm x 22mmKit list1. B064 1 in 4 out audio frequency signal distribute device 3.5mm interface x 12. USB power supply wire (wire length 100cm) x 13. 3.5 public to public wire (wire length 100cm) x 1

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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)2. This type product able to solve that 1 set stereophonic input able to distribute output 4 sets stereophonic, 3. Output has volume adjustment function, output without sound amplify function, the output keep the original tone quality and volume same with the input.4. Input and output adopt standard RCA interface5. 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 experienceProduct Parameter1. Material: Metal2. Interface: RCA interface3. Power supply: USB 5V supply power4. Input and output impedance: 10K ohms - 50K ohms5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 0dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: Standard RCA interface11. Input passageway: 1 set stereophonic input12. Output passageway: 4 sets stereophonic output at the same time (4 sets output unified volume adjustment)13. Single product net weight: 0.21kg14. Product size: 95mm x 53mm x 38mmKit list1. B063 1 in 4 out audio frequency signal distribute device RCA interface x 12. USB power supply wire (wire length 100cm) x 1

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1. Non source prime stage stereophonic volume adjustment controller,2. 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),3. Volume adjustment adopt professional 129mm clipper volume switch, smaller clipper switch precision error, more better left and right track synchronization, sound details no consumption.4. Make table type volume adjustment more convenient, volume size adjustment more visual and exquisite size.5. Simple installation: input and output, able to be used once inserted, convenient to install, signal source non consumption adjustment, then can enjoy different hearing experienceProduct Parameter1. Material: Metal2. Interface: Gold plating RCA interface3. Power supply: No need additionally connect power supply, able to be used once inserted4. Input and output impedance: 10Kohm - 50Kohm5. Frequency responding: 20 - 20kHz.6. Distortion: Less than 0.002%7. Output consumption: Less than 0.01dB8. Signal gain: 0dB9. Signal-noise ratio S/N: Greater than 98dB10. Input and output interface: Standard RCA interface11. Volume control switch: Adopt professional 128mm clipper volume switch12. Single product net weight: 0.54 kg13. Product size: 170mm x 69mm x 50mm

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1. Adopt 8 headphone jacks design without interfering with each other (4x3.5mm+4x6.35mm headphone jacks)2. TYPE-C/USB interface charging, more convenient to use3. Independent volume control, gain effect up to 20dB4. Wide range of application scenarios5. Features: stereo input interface, independent volume control, multi-channel headphone output, USB power supply, channels do not interfere with each other6. Applicable scenarios: music creation, performance, recording, live broadcast7. Dimensions: 14.9 x 7.5 x 2.4 cm8. Weight: 350 grams

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1. Silent Disco wireless disco system2. Using the UHF ISM frequency band in Europe and the US, the transmission distance of open space up to 200 meters3. Adopt advanced phase-locked loop technology to make the working frequency more stable4. The use of active noise reduction technology makes the signal-to-noise ratio above 70dB and the separation up to 50dB, almost no noise is felt, close to the level of wired headphones5. No sound source automatic shutdown design, when there is no sound source, the transmitter will automatically shut down after 5 minutes, avoiding stray interference6. Countless headphones can be connected to one transmitter at the same time. The transmitter has 3 channels, and users can choose their favorite music as they like.7. Can be connected to any device with 3.5mm audio interface or RCA interface, such as mixer, computer, mobile phone, DVD, TV, CD, etc.Specification1. Headphone output audio source: PC/Hifi/TV/DVD/CD2. Whether wireless: wireless transmitter3. Uses: family party, large stage party, square dance, fitness, yoga, conference, travel, broadcasting, cinema, etc.4. Plug diameter: 3.5mm5. Wire length: 3m6. Horn diameter: 40mm7. Sensitivity: 10dB8. Frequency response range: 20-20KHz9. Distortion rate: less than 1%10. Impedance: 32Ω11. SNR: >=75dB12. Distortion rate: <1%13. Frequency response: 30 - 20KHz14. Transmitter power supply: 12V/150ma adapter power supply15. Headphones must be connected to the transmitter for use

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Functions:Do you have 2 sets of balanced XLR signal devices with 2 sets of balanced XLR signal outputs that need to be connected and stuck?Do you want to achieve balanced XLR signal to unbalanced signal RCA? Are you stuck with an unbalanced RCA signal to a balanced XLR signal?A powerful balanced signal stereo selector switcher can solve the problem of multi-device connection and plugging. No external power supply, no loss switching.1. Two groups of XLR signal input, two groups of XLR signal output, a group of RCA connection input and output.2. Input and output using rotary 3-position independent mechanical switch switching, switch using high-precision silver-plated contacts non-loss switching.3. Switching operation rotary gear switch switching will not produce burst sound, the sound quality does not affect the loss-free transmission.4. Easy to install: input and output with connecting line plug-and-play easy to install. Signal source transmission without loss of switching, you can enjoy a different listening experience.5. Mainly used to choose to switch a variety of balanced stereo signal input to share the output of a set or multiple sets of equipment. Such as multiple stereo signal sources (preamplifiers, CD players, decoders, high-end players and other equipment) need to output to the amplifier or active speakers.6. Simple operation, balanced signal selection switcher to solve the complicated line plugging operation. The need to input the signal source of the device is connected to the switcher can be easily and conveniently selected.7. This product can achieve three interface conversion mode: XLR to XLR, XLR to RCA, RCA to XLR.Product Parameter:1. Material: Metal iron shell2. Interface: XLR and RCA interface3. Power supply: No external power supply, plug and play4. Input and output impedance: 10Kohm - 50Kohm5. Frequency response: 20-20kHz 6. Distortion: Less than 0.002% 7. Output loss: Less than 0.01dB 8. Signal gain: 0dB 9. Signal-to-noise ratio S/N: Greater than 98dB 10. Input and output interface: standard XLR and RCA interface 11. Number of input channels: 3 groups of gear switch input (can not be input at the same time, 3 select 1 input)12. Number of output channels: 3 groups of gear switch output (can not be output at the same time, 3 select 1 output)13. Control switch: Switch using high-precision silver-plated contacts, precise selection of manual switching switch14. Net weight of single product: 0.69 kg 15. Gross weight with packaging: 0.85 kg 16. Product size: L152 mm X W107 mm X H71 mm 17. Package size: L210 mm X W185 mm X H95 mm Package List- B033 3-input 3-output fully balanced audio signal selector switcher x 1

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Product presentation:You have a playback device output signal source such as (TV audio, player, video game, cell phone, tablet, computer, jukebox, etc.) just not loud enough / volume loud enough?A powerful front stereo signal amplifier sound enhancer can solve the problem of low sound.1. Sound amplification using Japan's original imported 4580 chip for amplification. Volume boost and bottom noise is small, dynamic range will not produce explosive sound.2. Amplified output gain in the original input signal source based on +60DB, suitable for general output level signal sound small equipment.3. Input using 2 groups of stereo input, 3.5mm and RCA two kinds of interface input, can be mixed at the same time.4. The output has three groups of stereo output, the front end has two groups of 3.5mm and 6.35mm headphone port output. The back end has a group of RCA output, 3 groups of interface output at the same time.5. The output has 2 groups of independent volume adjustment, 1 volume adjustment to adjust the 3.5mm and 6.35mm output. 1 volume adjustment to adjust the RCA output.6. Headphone interface output can drive 16 ohms-600 ohms headphones7. Power supply using 220V to AC9V AC transformer power supply, sound amplification is strong and powerfulProduct Parameter1. Material: Metal iron shell2. Interface: 3.5mm, 6.35mm, RCA interface3. Power supply: AC 9V4. Input and output impedance: 10K ohms - 100K ohms5. Frequency response: 20-20kHz 6. Distortion: Less than 0.002% 7. Output loss: Less than 0.01dB 8. Output signal amplification gain: +40dB 9. Signal-to-noise ratio S/N: Greater than 107dB 10. Input and output interface: standard 3.5mm and RCA interface 11. Number of input channels: 2 groups of stereo input (3.5mm and RCA can be mixed at the same time)12. Number of output channels: 3 groups of stereo output (3.5mm, 6.35mm, RCA can be output at the same time)13. Output volume adjustment switch: 1 volume adjustment to adjust the 3.5mm and 6.35mm interface, 1 volume adjustment to adjust the RCA interface14. Net weight of single product: 0.33kg 15. Gross weight with packaging: 0.59kg 16. Product size: L109 mm X W93mm X H38mm 17. Package size: L200 mm X W185 mm X H55 mmKit list:1. B022 - front stereo signal amplifier2. AC220V-AC-9V power adapter

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Product presentation:Do you have 3 power amplifiers and 3 sets of speakers that need to be connected to each other?Do you need 3 amplifiers and 3 sets of speakers to get stuck?A powerful amplifier and audio switcher can solve these problems,1. 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)2. 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 switch3. The maximum power of each channel is 300W4. Signal input provides vacuum tube power amplifier signal no-load protection function5. manual selection of input and output switching, straight plug straight use, switching signal stability, between channels will not produce another dry close or noise6. Compact design of solid metal shell, easy installation, the product does not need external power7. Simple installation: input and output plug and play easy installation, you can enjoy different audio experienceProduct Parameter:1. Compatible with all types of power amplifiers and speakers2. Input/output accepts heavy-duty speaker wire or speaker pin wire through the terminal port3. Connect the power amplifier to amplifier 01-02-034. Connect the loudspeaker to position A-B-C respectively5. Turn on your power amplifier stereo device and the product requires no external power supply6. Input:3 sets of inputs (banana plug)7. Output:3 sets of output (banana plug)8. Power: up to 300W9. Metal material, fine steel housing, compact size suitable for any system10. Channel Power: Each channel supports up to 300W of power11. Frequency response: 10Hz-50KHz12. Net weight :0.96 kg13. Packed weight :1.13 kg14. Product size: length 240mm X width 105mm X height 55mm15. Packing size: length260mm X width 185mm X height 65mm16. Kit list: 3 input 3 output power amplifier and sound switcher loudspeaker switch distributor x 1

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Product Presentation: Do you have 6 groups of musical instruments that need to be mixed and played out on one device at the same time and are troubled by the sound?A powerful mini-style 6-channel mixer can solve the problem of mixing together to sound out at the same time and so on.1. The mixer can be a variety of audio sources or musical instruments at the same time mixed on a channel output. Such as electric pipes, electronic guitars, electronic drums, electronic pianos, MP3 players or cell phone music, etc. mixed and output to active speakers or mixers.2. The mixer provides six groups of stereo mixing input, can also support mono input, input and output 6.35 interface.3. Each group of inputs with independent volume adjustment and mono / dual-channel conversion switch.4. Wide range of applications: mixer for most electronic musical instruments mixing, a wide range of applications.5. Easy to operate: 1/4 TRS input and output 6.35mm interface. Each channel has with independent switch button, so that the switch between mono and stereo audio input is more convenient and intuitive.6. Power supply: applicable to DC-5V power supply mode, convenient for users to use in a variety of occasions. For example, your charger adapter, rechargeable battery. As long as the voltage is DC5V, 500mA or more current (except for laptop and desktop computers) can power our products.Product Parameter1. Material: metal iron shell2. Interface: 6.35mm connector3. Power supply: USB DC-5V4. Input impedance: 4.7K ohms 5. Output impedance: 80 ohms 6. Frequency response: 10-50kHz 7. Distortion: Less than 0.002% 8. Output loss: Less than 0.01dB 9. Output signal amplification gain: +16dB 10. Signal-to-noise ratio S/N: Greater than 107dB 11. Number of input channels: 6 groups of stereo input (support 6.35mm mono or dual channel stereo mixed input at the same time)12. Number of output channels: 1 group of stereo output13. Output volume adjustment switch: each group of inputs with independent volume adjustment and mono stereo switch button14. Net weight of single product: 0.35kg 15. Gross weight with packaging: 0.51kg 16. Product size: L145 mm X W80 mm X H25 mm 17. Package size: L200 mm X W185 mm X H55 mmKit list:1. B020--6-channel stereo instrument mixer x 12. USB power cable - cable length 100CM x 1

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1. The power amplifier board is designed with the official standard circuit, and the chip selection uses the original Class D power amplifier chip.2. The power amplifier has super power, and can output 10W+10W power under the condition of 12V power supply. The chip does not need a heat sink, and it also has overheating, overcurrent and other protection functions3. This board has a switch function, short the SW to turn off the power amplifier.4. Specification model: XH-M1815. Chip model: PAM86106. Working mode: Class D (PWM modulation type)7. Power supply range: DC 6V~15V (self-protection)8. Recommended voltage: DC 12V2A9. Frequency response: 20HZ-15KHZ10. Channel type: dual channel11. Static current: 20mA (DC 12V)12. Signal-to-noise ratio: 90%13. Recommended speaker: 10~100W14. Input impedance: 15K15. Output impedance: 4~8Ω16. Output power: 10W x 2 (8Ω) 15W x 2 (4Ω)17. Harmonic distortion: less than 0.1%

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1. Plug: US standard2. Input: 6.3 mm stereo jack3. Input impedance: 100 ohms4. Output: 6.3mm stereo jack5. Output impedance: 80 ohms6. Tone configuration: 20Hz-20KHz7. Includes 12V power supply8. Compact 4-channel stereo headphone amplifier can be used with up to four headphones simultaneously, i.e. listening to the main mix simultaneously with separate volume controls9. Equipped with four powerful stereo amplifiers for outstanding performance at any volume10. Clear sound, ultra-low noise 4580 op amp for 19” studio equipment11. Each channel can have independent volume control12. Dimensions: 103x46.5x57.2mm

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1. Material: metal2. Connector: RCA connector 1/4"TRS3. Power supply: DC 12V4. Power adapter: US plug, input 110-240v 50/60Hz, output 12v 500mA5. Ultra-compact preamplifier with metal casing, lightweight and durable6. 2 x RCA (L & R) inputs 2 x RCA (L & R) outputs 1x1/4" TRS output, multiple connection options7. With level and volume control knobs8. Convert telephone signals to line level signals9. Ultra-low audio performance, providing excellent sound quality10. Size: 10.3x5.7x3cm11. Weight: 177 grams

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1. Input interface: stereo 3.5 mm TRS interface, stereo AV interface2. Input impedance: 22K ohms3. Input signal level: +22dB4. Output interface: Stereo 14" TRS interface, Stereo 3.5 mm TRS interface5. Output impedance: 16 ohms (MIN)6. Gain: 19dB/channel7. Signal-to-noise ratio: 98dB8. Power supply: DC5V, external power adapter9. Dimensions: 140x90x30 cm

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1. The sound quality using this module is very good.2. Mono digital audio amplifier chip.3. High output and low power consumption.4. Applicable speaker impedance: 4-8 ohms (8 ohms is best).Product specifications:1. Power amplifier chip: TPA31182. Working voltage: DC8-24V3. Output power: 60W/30W4. PCB board size: 45 x 35mm/1.77 x 1.4in5. Weight: 12.3 grams

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About the product1. A high-performance portable mini size front-end signal amplifying switcher and sound quality processor, 2. Built-in high-performance power processor and signal amplifier 3. For circuit design, Texas Instruments(TI) NE5532 dual operation amplifying chip in top quality acts as the front-end amplifier. 4. NE5532P is tailored for the high-performance audio system, which features ultralow harmonic distortion, low noise, high gain bandwidth or other. 5. Dual FET input widens the dynamic range for NE5532, and sound signal amplification and bipolar operational amplifier. 6. 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. 7. 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. 8. 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. 9. Additionally with output equipment of signal source or other signal inputs, used for amplifying switch 10. 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. 12. 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. 13. Additionally with the tailored high-capacity filter capacitor, ensuring the clean power supply.Main Features1. 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. 2. High-precision power bleeder circuit ensures the stability of circuit and reduces DC shift of output. 3. Advanced input and output connecting base ensures the smoothness and durability of signal channel. 4. NE5532, well-tailored for the high-performance audio system in best signal amplification, acts as front-end amplification. 5. Original potentiometer made in Taiwan, with small sound loss, high balance, good hand feel and durability. 6. 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. 7. Standard input interface: 4 x 3.5mm (with four-channel signal input switch) 8. Standard output interface: 3.5mm headphone base and RCA red-white audio base (with simultaneous output)Package Contents- 1 x A926 Four-In Two-Out Signal Amplifying Switcher - 1 x 100-240V Power Adapter (DC12V, US Standard, 100cm power cord) - 4 x 3.5mm Audio Cable (Length: 100cm)

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Package:Yes PCM:No Built-in Battery:No Channels:2 (2.0) Output Power: 1W Recommended Headphone Impedance: 501-600 Ohm Input Type: LINE IN (AUDIO IN) Output Type: LINE OUT (AUDIO OUT) DSD (Direct Stream Digital):No Bluetooth:No Brand Name:IWISTAO Dimensions (WxHxD):320 mm* 180 mm * 160 mm WIFI: No Type: Professional Amplifier Earphone amplifier output: 1W Output impedance of Earphone amplifier:32 ~ 600 ohm Output power of tube amp:2 x 8W (4 ohm) Frequency response: 26-38 KHz +/- 2dB Total harmonic distortion: Less than 0.008% (10Hz to 20 kHz) Signal to Noise Ratio: Greater than 118dB (A weight) Net weight (W*D*H):6.2kg Operating voltage:110 ~ 240V / 50 ~ 60 Hz Output Type:RCA

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Input Type:USB,COAXIAL,OPTICAL Model Number:DAC-X6 Signal To Noise Ratio:105 Applicable voltage:100V-240V 1. Standard Input Interface: PC USB / coaxial, fiber optic (with toggle switch)2. Standard output interface: 6.35mm headphone output base line standard RCA connectors3. Color: Black, silver4. Line level output: RMS 2V5. Output power: 90mw / 600ohm, 180mw / 300ohm, 450mw / 100ohm, 610mw / 62ohm, 910mw / 32ohm, 1000mw / 16ohm6. SNR: >=105dB7. Frequency response: 20hz-20khz8. Adapter Voltage: 100-240ACV9. Machine power / adapter output voltage: Dc12V 1A above10. Machine dimensions: 146mm x 98mm x35mm (including protruding parts), weight: 500g11. High resolution, under a wide range of frequency support 24BIT 44.1K-96k.

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Brand Name:LEORY Model Number:Karaoke sound mixer Features:1.Ultra-compack 4 channels input and 1 channel output line MONO mixer.2.Each input channel can be adjusted volume individually.3.With highest sonic quality even at maximum output level.4.Ultra low noise 4580 operational amplifier for outstanding audio performance.5.Comes with a DC 12V power adapter.Specifications:Material: MetalColor: SilverPower Adapter: US PlugItem Size: Approx. 10.5 * 5.5 * 4.5cmConnector:12VChannels:4 channelModel: MX400Input line : 4x1/4’’TRSOutput: 1 x 1/4’’TRSPackage List:1 * Mixer1 * Power Adapter1 * User Manual (English)

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Input Type:USB,COAXIAL,OPTICAL Model Number:DAC-X6 Signal To Noise Ratio:105 Applicable voltage:100V-240V 1. Standard Input Interface: PC USB / coaxial, fiber optic (with toggle switch)2. Standard output interface: 6.35mm headphone output base line standard RCA connectors3. Color: Black, silver4. Line level output: RMS 2V5. Output power: 90mw / 600ohm, 180mw / 300ohm, 450mw / 100ohm, 610mw / 62ohm, 910mw / 32ohm, 1000mw / 16ohm6. SNR: >=105dB7. Frequency response: 20hz-20khz8. Adapter Voltage: 100-240ACV9. Machine power / adapter output voltage: Dc12V 1A above10. Machine dimensions: 146mm x 98mm x35mm (including protruding parts), weight: 500g11. High resolution, under a wide range of frequency support 24BIT 44.1K-96k.

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Features1. The USB uses VT1630 producing from Weisheng, a big manufacturer in Taiwan, with stable performance and high resolution, with a wide frequency support range of 44.1K-192K under 16BIT mode and 44.1K-96K under 24BIT mode. 2. The DAC partly uses the fine CS8416 + CS4398, and the ear amplifier chipset adopts OP275 + TPA6120 and DAC+ digital audio decoder, which can generate a shocking music live sound. 3. CS8416+CS4398 as a common feverish chip combination, in electronic magazines and various applications have a detailed record, which indicates the performance and sound quality has been recognized by the majority of music enthusiasts. What we have done is optimize the power supply and use high precision active crystal oscillator to obtain the effect to the limit. 4. The combination of TPA6120+OP275 ear amplifier chip, which is the beautiful sound ear amplifier combination. TPA6120A2 is the current feedback type differential input high fidelity earphone amplifier IC produced by TI Company. With very low distortion, extremely high band width and conversion rate for professional audio applications, is suitable for professional high-end listening earphone amplifiers, professional audio equipment, listening and other equipment. TPA6120A2 has a dynamic range of 120dB with a conversion rate of 1300V / s and a distortion of 0.00014 THD + N. The 120dB signal-to-noise ratio (SNR) adapts to harsh requirements such as DVD audio and the Super Audio CD / CD (SACD), and can perfectly drive 30 ohms to 600 ohms of headphones.OP275 is a classic feverish amplifier chip. 5. Standard input interface: PC / USB / fiber / coaxial (switch with unplugged switch). 6. Standard output interface: 6.35mm headset / line output / standard RCA interface. 7. Output power: 90mw / 600 ohms, 180mw / 300 ohms, 450 mw / 100 ohms, 610mw / 62 ohms, 910mw / 32 ohms, 1000mwr / 16 ohms. 8. The power supply uses a voltage of: AC 100-240V. 9. Power output voltage: DC 12-1A.Notes1. When the volume knob is connected with the power amplifier and the active speaker, the adjusting knob is not effective. Only when the earphone is connected, the adjusting knob will work. 2. the system volume can not be adjusted when connect to the computer, because this is a digital signal. Suggest do not adjust the volume on the computer, which will lead to noise. You can adjust the volume on your power amplifier or the volume of the player. 3. Speakers and headphones should be disconnected when switching, without automatic switching.

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About The Product1. 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. 2. 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. 3. 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. 4. 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. 5. 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.Features1. Listen to power amplifiers A or B through a pair of speakers. 2. A speaker 1 or 2 is heard from one of the two power amplifiers. 3. Compatible with all types of power amplifiers and speakers. 4. The input / output receives the heavy-duty speaker wire or speaker pin wire through the terminal port. 5. Press the speaker selection switch to the corresponding speaker 1 or speaker 2 position. 6. Press the amplifier selection switch to the corresponding amplifier A or amplifier 2 position. 7. Turn on your stereo device, the product does not need external power supply. 8. Fine steel housing, compact size suitable for any system. 9. Channel power: Up to 200W per channel. 10. The frequency response: 10Hz to 50kHz.

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About The Product1. The LINEPAUDIO phone preamplifier adds phonograph functionality to any amplifier or receiver with standby auxiliary level input. 2. Prephonograph signal amplifier with AUX input and volume control, and AUX is with no signal amplification function. 3. The Phono preamplifier adds a phonograph function to any amplifier or receiver having standby AUX / CD / DVD audio line level input. 4. 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. 5. 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. 6. 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.Features1. High quality RIAA phonograph preamplifier, for use with dynamic magnetic type jukebox. 2. Accurate and stable integrated circuit design. 3. Gold-plated head input and output connection RCA port, reliable performance. 4. Stylish, sturdy metal case to increase resistance of electrical noise. 5. The output level control allows the volume to be adjusted to provide signals from other sources. 6. Distortion ratio: 0.06% (max). 7. The frequency response is: + / -0.5dB, 20Hz - 20kHz. 8. Phonograph input impedance: Phono: 47K ohm - 200pF nominal. 9. Line input impedance: AUXL: 10K ohm. 10. Output impedance: 200 ohms. 11. Channel separation: 50dB. 12. Voice: 40dB (Phono) arbitrary signal source. 13. Phono sensitivity: 3.3MV. 14. Output: 300MV. 15. SNR: 85 dB. 16. Power supply: DC 12V 1A.

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About The Product1. 1 input and 3 output or 3 input and 1 output of LINEPAUDIO products , passive stereo speaker audio switch, is a manual stereo speaker switch. 2. The product adopts all aluminum metal shell material; CNC numerical control surface is treated with oxidation. 3. Audio switch provides three sets of signals to select input and output; and saves the reconnection equipment, which is the ideal choice switch. 4. Noise-free switching can be performed between the support for one signal input and three signal selection outputs, or three signal inputs and one signal output. 5. The wide range of applications is suitable for sound comparison between devices with additional stereo input and output.Features1. Application of manual 3-level switching between multi-function and multi-equipment. 2. 1 input-3-output or 3-input-1-output operations to achieve maximum versatility. 3. Noise-free switching, fast and simple operation when connecting to put in use. 4. One signal input, manually switch three signal output, 5. In contrast, one signal output, manually switching three signal inputs. 6. The product provides 1/4 Tip-Ring-Sleeve(TRS) 6.35mm socket for easy connection. 7. The product does not need external power supply, aluminum shell is sturdy and durable. 8. The frequency response is 10Hz to 50kHz.

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About The Product1. 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. 2. 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. 3. 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.Features1. Please use this convenient box when you need to divide the line level signal into six times. 2. 1 XLR input socket in parallel to 6 XLR outputs. 3. Additional amplifiers are added to the system to connect a plurality of active speakers. 4. Split up intercom lines, etc.

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About The Product1. 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, 2. 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. 3. 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. 4. Ground connecting: Plug jumper to disconnect the chassis grounding input of microphone pin 1 and the microphone passes through. 5. The microphone: XLR Jack is in parallel with the microphone input Jack (hardwired) for delivery to the mixer or other microphone-level input device. 6. Microphone input: XLR balanced Jack for connecting capacitors or moving-coil microphones. 7. 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. 8. Mono / stereo jumper: Select whether the input Jack is mono or stereo. 9. Left / right output: Transformer balanced XLR output from device input. 10. hGrounding route: A plug jumper used to disconnect the chassis from the output Jack of the 1/4 RS device. 11. Mono / stereo jumper (located below the line input): select whether the line input Jack is mono or stereo. 12. Note: The interface of the XLR Jack under MONO mode can be used for "Phantom Power" which is required to connect the mixer. 13. Headset output: 1/4 stereo Jack and 1/8 stereo Jack for connecting stereo headphones or headphones. 14. Line level: Adjust the level signal from the line input to the headphone mixing. 15. Microphone level: Adjust the level signal from microphone input to headphone mixing. 16. Inst. level: Adjust the level signal from inst. input to headphone mixing. 17. 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. 18. 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. 19. Instrument input is connected to the guitar preamplifier output, keyboard or any stereo or monophonic instrument signal. Select stereo or mono.Features1. Max input level: -20 dB XLR, +40dB line, +15dB instrument. 2. Input impedance: 50K ohms 3. Output frequency response: 10-30kHz +/-3dB 4. Output impedance HDPHN: 10ohms 5. Output impedance: 2 ea; 100ohms balanced 6. Gain: 20 dB 1/4 inch, 50dB XLR 7. HDPHN frequency response: 20Hz-20kHz 8. S/N ratio: 90dB 9. Power: DC 9-16V 10. 1/4 TRS stereo / mono listening input. 11. The XLR microphone enters w/ pass-through. 12. 1/4 TRS stereo instrument input, 6.35mm / 3.5mm stereo / mono output.

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About The ProductAlmost all 60Hz AC buzzing is caused by earthing loops and acts like a radio antenna (ring antenna). The buzzing noise canceller completely eliminates this by disconnecting the grounding circuit, making the signal line unable to absorb the AC buzzing and noise first. Compared with balanced circuits, unbalanced circuits are more susceptible to current noise and RF interference, the longer the unbalanced cables are, the more likely problems are. Using this device to connect two devices is one of the most economical and effective methods to convert between unbalanced signal and real balanced signal. Automatically convert signal voltage to match ground potential difference.Features1. 60 Hz noise cancellation, eliminating AC buzzing noise. 2. Safety earthing breaks the grounding cycle, keeps the highest sound quality. 3. Passive equipment: No power supply, high performance ultra compact design. 4. Four channel stereo 6.35mm and XLR and 3.5mm and RCA signal inputs and outputs. - A set of input and output 6.35mm TRS signals. - A set of input and output XLR signals. - A set of input and output 3.5mm signals. - A set of input and output RCA signals. 5. Note: there is no multi-channel stereo input and output at the same time. 6. Fever grade high quality components and very sturdy structure. 7. Automatically converts an unbalanced signal to a balanced signal without any signal loss. 8. Use the 11:1 isolation transformer to disconnect the ring antenna and the balanced audio line.

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About The Product1. 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. 2. DC PWR used to connect a DC12V power supply. 3. OUT: stereo RCA jack for connecting mixers or amplifiers. 4. 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. 5. 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.Features1. For mixed microphone XLR input and up to three RCA input signals 2. Input impedance: 10K ohms per jack 3. CH1 gain: 32dB XLR jack (maximum gain) 4. Phantom power: for CH 1 microphone XLR 5. CH2 gain: 26dB 1 / 8 inch and RCA 6. CH 3 and CH 4 gain: each RCA--26dB 7. Output: 1/8 inch stereo and stereo RCA 8. Signal-noise ratio: > 90dB 9. THD: <0.008 10. IMD SMPTE: <0.008 11. Power supply: 12V DC adapter

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