My SMS-1 showed up from Outlaw a couple days ago.

I've posted a Flickr photoset screenshots. This is for my B&W 603 S2s + a single Velodyne FSX-12 sub.

SMS-1 Flickr Photoset (look at the photo descriptions, they explain how I got each curve)

I've always had trouble calibrating my sub w/ Avia test tones, and now I guess it's obvious why, my room has a pretty big bump around 80hz. I had to get pretty drastic with the crossover settings to tame it, my pre/pro now crosses my mains at 100hz, and the SMS-1 lowpass is at 120hz. Not sure how to feel about that... and I don't know enough about room treatments to know if there is another way to smooth that area out.

My initial listening impressions are that "true" bass = almost no bass. I guess it will take some getting used to!

-james