This was a 2W / channel audio amplifier designed for Super Nintendo or computer sound cards.
(https://savagecircuits.com/wp-content/uploads/1996/01/Prototype_SNES_PC_Amplifier_01.jpg)
CLICK HERE TO GO TO THIS PROJECT ON THE SAVAGE///CIRCUITS WEBSITE (https://savagecircuits.com/prototype-snes-pc-amplifier/)