King, some of the points you described were unclear. If you mean that the 120's auto calibration boosted the sub trim up to +15dB(the maximum?), the indication would be that the level control on the sub itself was set too low for the calibration and should be set higher so that the receiver sub trim will come out lower than +15 to compensate. But do you mean that even if you calibrate with the sub control all the way up that the receiver still sets the trim at +15dB?
I also don't follow the -10, +10 and spl comment. Can you clarify some of this a bit more?
