I just got my AudioBox USB today and amp trying to demo some things out. I plugged my guitar directly into the interface and there was clipping almost immediately, even with the gain turned very low, and whenever I turn the mixer over to the playback side, all I get is terrible noise, and nothing gets loud at all from the main output even with the knob turned all the way up. I am using a Macbook Pro retina display with Mac OSX El Capitan, and using Logic Pro X.