Do you run the sweep on channel 4 for subs or 3 for center?
So you are basically aiming to flatten the sub at 80hz, 60hz or whatever?
One more question, and I know it is contested. I have a verified spl meter (CM140) from Cross Spec and of course the Umik 1. With audyssey engaged, if I run a 30-80hz pink noise tone (-40dbfs) from the spears and munsil version 2 blu-ray, they tell me XT32 has my sub levels set low. I usually get something like 69 or 71db's.
Some say leave it, but I question that with other devices telling me something different.
LG 65E6P / Sony X800
Marantz AV7702II / Outlaw Model 7140
Klipsch RF7II's / RC64II / Dual Rythmik FV15HP's