Davin, very impressive set up! I am a parasound owner too, 1206-not quite the muscle of the 3500 though. When you are not listening to that beast, do you use it as a welder? Did you have to run a seperate circuit for the 3500? My trim settings very from 0 to -2(sub is a direct servo from rythmik audio set at -4) and my speakers are Infinity kappas from the 80's(efficiency of 87db). When I watch a movie, I usually have it at -10, or if I push it -5 to -2. Listening to dvd audio or sacd, -5 to 0, these give a db level of 105+/- 2db. Brian