I have previously shared a circuit made with the TDA7375 amplifier. ” TDA7375 2X35 Watts Amplifier circuit ” this circuit is more advanced in addition to the LM1036N integrated tone control. The circuit can be operated with asymmetrical, single source 12v … 18v DC voltage.
TDA7375 AMPLIFIER CIRCUIT SCHEMATIC AND AUDIO CONNECTIONS
If you have a DC 12v source that is designed according to the 2-diode rectifier system using 2X12V transformer, you can use 6 amp diodes. You can install a jump instead of 1 diode while protecting the diode against reverse voltage.
The TDA7375 with the volume tuning pot switch cuts off the voltage to the stand by the pedestal, which goes into the integrated standby position and at the same time the LM1036 switches over the supply voltage.