LYNEPAUAIO 1-in-4-out Stereo Audio Amplifier Amp Signal Distributor 1 Channel Input 4 Channels Output RCA Interface Independent Volume Adjustment for Home Speakers If you want to run several long lines between the TV audio line and a receiver on the other side of the room, provide high gain through any line level signal source, allow longer cable lines to run, or require "buffering" to solve low volume problem, you shouldn't miss this stereo audio distribution amplifier. 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.This product can increase the sound quality of the control signal and reduce the bottom noise. Features: 1 * input interface for connecting TV audio, MP3 player, video game machine, smartphone, tablet, computer, record player and other line level signal source devices. 4 * output interfaces for connecting power amplifiers, speakers or headphones to achieve 4-channel stereo audio output simultaneously, and improve sound quality and reduce noise. Input and output both adopts standard RCA interfaces, compatible with most audio devices, straight plug and use, easy e. 4 stereo outputs use high-precision potentiometer, supports independent volume adjustment and has an independent signal gain amplification function(+20dB). Input power is controlled by switch, and comes with a power adapter for more convenient usage. Compact size design, lightweight and portable, and won't take up much space. Specifications: Input impedance: 100K Ohm Maximum input level: +14 dBV Output impedance: 47 Ohm per output channel Frequency response: 20Hz-20KHz SNR: > 107dB Total harmonic distortion: < 0.02% Intermodulation distortion: < 0.01% I/O interface: Stereo RCA Power supply: DC-12V Item Size: 10.9 * 7.9 * 3.8cm/ 4.3 * 3.1 * 1.5in Item Weight: 310g/ 10.9oz Package Size: 18.5 * 13.5 * 6.5cm/ 7.3 * 5.3 * 2.6in Package Weight: 460g/ 16.2oz Packing List: 1 * Audio Amplifier 1 * Power Adapter