I haven't contacted PRS yet...1st trying to get feedback from the forums from other users...like I said before I can't compare the mt15 because none of the stores have it in stock. Mine was an online order and the box it was shipped in was in good condition, but who knows maybe it still got tossed around. I agree with you X-Mann , I think the 15w/7w is very misleading for people thinking it would be a good practice amp for low volume playing and with heavy gain created by Tremonti's style. Don't get me wrong, it sounds great minus the hiss. Also what's missing for me is the master/output knob for the clean and lead volume. With my Mesa single rec that master/output knob really helps you to fine tune/taper up/down the volume. The volume knob for the clean & lead on the mt15 doesn't taper down to well. But I did solve the volume problem...I just got last week an Ernie Ball MVP volume pedal and hooked it up in the loop. It basically becomes your master/output volume control without losing any signal. Also I'm gonna do some experimenting with this pedal. It has a gain knob...I'm gonna lower the mt15 gain down to 8-9 o clock and turn up the gain on the volume pedal and see what kind of gain I'm getting. Do you think a noise gate in the loop will solve that hiss issue at low/practice volumes? Or try the Ebtech Hum X first?