"This item is only PCB board " 1 channel or mono, on PCB board shows the part number of each component, easy to assembly for people who like to build power amplifier by themselves.

This circuit uses IC to be pre-driver and transistor at output stage  power transistor 2N3055 / MJ2955

It requires dual power supply +35V and -35V

It comes with the schematic diagram !!!

PCB size = 2.93" x 3.7"