How to install 7850 amplifier board on car stereo

1. Keep the power amplifier 90cm away from the receiver.

2. Mark the landing position of the power amplifier mounting bracket and install the power amplifier with fastening bolts.

3. Connect the front-stage output of rca with the power amplifier.

4. Connect the negative lead of the battery and test the power amplifier. The types of power amplifier are divided into av power amplifier and hifi power amplifier. The performance indexes of power amplifier include output power, frequency response, distortion, signal-to-noise ratio, output impedance and damping coefficient. The function of the power amplifier is to amplify the weak signal input by the sound source equipment and generate large current to push the speaker to play back the sound.