Introduction - If you have any usage issues, please Google them yourself
The acoustic parameters of the power amplifier is as follows: 1. The rated range of the playback frequency (-3dB level) is 25 ~ 22000Hz stereo channel, the effective power of 5.5W 2 low channels effective power 22W rated input voltage of 0.25V rated input voltage harmonic coefficient of 0.12 6. voltage amplification factor is 26dB quiescent current of 120mA ~ 150mA Supply Voltage 11.7 ~ 14.4V.