I'll play around some more this week. I like the SMS-1 as you can watch the curve change without filters. It was strange that with all the subs at 180 I had the flattest curve. I figured since the front subs were next to my 80's, "0" would be better, but the curve had a lot of peaks(humps) in the lower freq's.

Sounds like I pretty much followed your methods as you descibed. When I was trying to reduce peaks, say at 50hz, it would raise instead of go down, usually peaks are easier to lower? I was just worried about having the Denon to low on the sub gain, as this required me to crank the 350's up to about 3/4.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85