I don't really have a problem with DACs on PCs, but the amount of noise present on most motherboards is terrible. (I can usually tell when my machine is compili

I don't really have a problem with DACs on PCs, but the amount of noise present on most motherboards is terrible. (I can usually tell when my machine is compiling). A few years ago I bought some USB DACs and separate headphone amplifiers and it made a world of difference, even to my relatively ancient ears.