Hi all ,loving this unit, my question is:if I have the level of the test tone thru my fronts at say 80 db according to the radio shack spl meter what should I set my sub level at? 80 also, I know this sounds like a dumb question. but i'm just wondering the proper way to do it. I have my subs betwen 1/4 and 1/2 like it says in the manual and with the test tone on it kind of flattens out around with the volume at 30 to 34 on the sms1. does it sound like I'm doing it right?