I have a pioneer fx700bt or something, and don't like it. The eq affects my sub (I don't have an amp on mids), and there's a huge difference in sq and bass in the radio, cd, and usb stick. I have it tuned to what the usb sounds like, and I switch it over to cd and I can tell its missing a whole range of frequency, probably 60-80hz. I think it's actually set around 70hz. the usb stick sounds normal in a way, but its not as clear and the bass sounds a little too "muddy' for my tastes. is it a poor usb, poor download, or poor h/u. Even on a ram-designs decaf download, its the same issue, and I don't think those are poor quality. Any one know a good place or format to download music on. i only have 1 cd..lmao. It's so bad I just spend 400.00 on a brand new fi q12 to go with a more sq setup with the high qts, i heat ring, and sealed box. Anyone else have this problem with other than pioneers? i can't stand not being able to enjoy my music.