Anyone use them? I'm looking into getting one as a portable interface, and was wondering if the pre's are even halfway decent. I know they're not going to be API's or Great River's, but are they useable? Mostly I'll be using them to track rock drums on location, at least until I can get some more money scrounged together for some other pre's. I ran a search and didn't come up with much more than they're "clean type pres"