The SA301 is an amplifier made by PIONEER in the 80’s, producing 32 Watts of output with the featuring tone control from the amplifier’s output.
INFO
This amplifier uses the STK IC to support its Power Amplifier circuit.
SCHEMATIC DIAGRAM
The following is a schematic snippet of the SA301 power amplifier section.
Power Supply using 36VDC simmetrically. STK 4141 can amplify the audio signal until 32 Watts ( DATASHEETS HERE )
INFO
The circuit need voltage supply -23VDC for pin 4 of the STK’s.
