I'm using M Powered Pro Tools through a Firewire 1814 interface. I'm running into audio problems when recording drums. What I've been doing is running the mics into a Mackie mixer then individually out to the interface (snare, kick, 2 ohs) The problem I'm getting is that the sound quality from the 2 inputs going into the back of the interface (the 96khz 1/4 inch jacks) is noticeably worse than the XLR inputs on the front. Is there anything I can do, or am I missing something here?