actually this turning up the volume was done by accident when I noticed it. Not really a "hobby"..although thanks for the idea i'm curious about this hiss because i'm using Klipsh speakers. I'm thinking it's because of their high efficiency or perhaps it's something everyone hears. Incidentlly, even at low volumes or quiet areas of a recording this hiss is very much present. Anyway, ever dunk a transistor radio in shallow water?