I never really understood the difference that converters really could make (I just go 24bit 44.1khz) until I lost use of my Mackie Onyx. I always thought it sounded pretty good and then I upgraded to OSX Leopard (without checking for hardware compatibility...OOOPS!). I found myself buying an Apogee Duet and the difference is pretty much night and day.....Anyone wanna buy an Onyx 1220 (LOL!.....but seriously, I am gonna sell it)?. If and when I purchase another interface I am gonna go ahead and budget about 2 grand for it. There definitely is a difference.