Specification:  This is an assembleable medium power 5.1 power amplifier, suitable for home audio-visual environment, car speaker modification, high power, less heat, good sound quality, small size, high efficiency and power saving.  Net weight: 150g.  Size: 100*84*20MM.  Input signal:  Sensitivity 1.4V, suitable for computer sound card, decoder, DVD, car navigation and other 5.1 low voltage audio signal input.  Output Power:  Maximum 50W*4 (main box and surround), maximum 100W*2 (center and bass), please note that the input and output power of high voltage should not exceed the maximum value.  +24V input temperature rise is relatively high, pay attention to ventilation and heat dissipation.  Power supply requirements:  Wide power supply can be used to input DC +12 to +24V wide power supply range.  It is recommended to use more than 19V power supply (not directly connected to AC power).     Wiring instructions:  Power input power supply positive +24V and power supply negative GND, reverse connection for short-term protection, please check carefully before power-on.  J4 is the switch wire, you can plug in the jump cap, work on the amplifier.  J3 is an LED external interface for easy installation and installation of LEDs.  Speaker terminal (6 channels are positive and negative, pay attention to the positive and negative corresponding to the speaker line, the positive and negative speaker lines can not be crossed in parallel).     Features:  1. Independent 6-channel input, 6-channel output, pure final stage power amplifier.  2. Input high sensitivity, you can directly connect to computer sound card, decoder, DVD, HD player, you can also upgrade most AV amplifiers, can be used with the power supply of the front panel, no noise, easy to use.  3. This amplifier is based on 4 TPA3116 cores, coupled with electrolysis, and shielded inductor for low-pass filtering, 100V CBB.  4. Switch machine circuit control, power-on without popping, external control switch, external LED indicator interface.  5. All use pure copper, large hole binding posts, convenient wiring, safe and reliable connection.  6. Large electrolytic filter energy storage.    Package includes:  1 x Amplifier board.  2 x LED light.  3 x Cables