We found this good audio amplifier that must be powered with a voltage up to 14 V in a circuit manual from the 90's. The circuit gain is 70dB and the input resistance is 100 k. The circuit is for automotive use.
We found this good audio amplifier that must be powered with a voltage up to 14 V in a circuit manual from the 90's. The circuit gain is 70dB and the input resistance is 100 k. The circuit is for automotive use.