I every now and then wonder about the technical side of audio and just wanted to ask a basic question. I just wanted to know why or how the preamp adds/improves the overall sound quality. I remember reading somewhere that it shouldnt add anything and it should be transparent. If that's the case could I just connect my amp directly to my DAC on my PC and just use the volume control on there and have an optimal setup? Rather than spending money on a good tube preamp?
In my opinion I think it would sound better with a good preamp but just wondering more about the reason why.