Thanks for all the feedback on the settings. I have settled into the one port eq1 q control .3 for music and .7 for movies. I really enjoy the headroom and extension. I talked to Kevin today and he mentioned that the volume knob is VERY sensitive so a little adjustment goes a long way.
I also have to admit that I just ordered a second MK2.
Since my Denon does not eq the sub, I plan on controlling separate levels, eq and delay with a MiniDSP unit running a 2 way crossover plugin. Once the unit gets here, it will be time to learn how to use REW so I can correct for the room, personal tastes, etc.
I would appreciate feedback from anybody who has been through this process with a dual sub setup.
Why did I order a second one?? Well, to fill in a few nulls in the room, increase headroom at lower frequencies and decrease strain from running the subs at their limit. At least that is what I tell my wife. I just want to be knocked off the sofa every time something blows up!