What is it?

This is a versatile module designed around the already mentioned LM3886 amplifier IC. It makes provision for a servo balancing circuit and an inverting op-amp at the input to one amplifier to allow bridged mono operation.

Component Selection

I have not yet calculated the optimum component values, but hopefully I shall get around to it soon. Op-amps are NE5532 or similar.

Schematic

PCB Layout

The board is single sided with some wire links on the top side.

Downloads

Download Eagle Files

It has been carefully designed, but not built or tested. Caveat Emptor