That's great Garth, thank you, I use Itunes, lossless format, it sounds great, I just found the equalizer, and turned it off. I like music, I don't claim to understand technology beyond the basics. I tried to find another equalizer in windows, could not, is that the suggestion, turn it off in Itunes, volume to the max and don't worry about windows. I access the music on two different computers, the sound card is called soundmax on both, but I think they must be different versions, because one has a base & treble control the other doesn't. I am less concerned now that I have been listening to the music for a while, I just got the system and am still fiddling, I'll get there.