I can run out of my iPhone straight into the RCA connections on the back, turn up main volume, and it sounds great when music plays, when music stops, very little noise at all.
When an input is applied anywhere else, however - either of the two side channels on the mixer, or on the main in on the back, turning up the main volume creates a hiss that isn't acceptable. I've tried multiple mics, multiple guitars, different cables, etc - all the same. Even when not even pushing a signal to the L3t, just having something plugged in to *any* input except RCA, and turning up the main knob - hiss.
This is too big and expensive to just be something that makes mp3's sound good, hehe. Thoughts? Thanks!