I'm worried you may not know exactly what you are looking at. I assume when you say digital amp you mean a class D amp. But class D is not digital. It is analog. It is a form of encoding music wave forms into square waves but this is an analog encoding format, not at all digital.
I have an idea for an audio product what should I do?
Without giving too much away it involves working with smaller digital amplifiers that are modified for a certain application. Should I contact an electrical engineer or someone in the business already who builds audio amplifier products or...?? I have zero experience myself with building any audio related products but I think the idea I have is intriguing. Thanks for any help!