When you do not output 5.1-channel playback devices, only mobile devices such as mobile phones, computers, MP3 players, etc., you only need to input two main channels and turn the sound source switch to the surround position to output the analog ones. 5.1 channel. All speakers have sound. Conversely, when the 5.1 channel signal is input, the switch can be set to the channel position.
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1.5.1 The internal chip of the power amplifier board adopts imported LM1875×6 (imported disassembler) as power amplification, with analog 5.1 conversion, 6 lotus heads connected to 6 channels of input, and can also receive two channels of analog signal input.
2.5.1 channels each channel works independently, 4 white plugs, and 6 channel speakers (2 of them are 3 plugs, and the two speakers share a negative electrode)
Chip Name: LM1875 (disassemble)
Rated power: 25W×6(5.1-channel power amplifier board 25W×6 (each channel works independently, subwoofer output)
Working voltage: dual AC12-18V
Signal to noise ratio: 86dB
Distortion: less than 0.01%
Frequency response: 20Hz-20KHz
Specifications (L*W*H): 160*130*63MM