Thanks for the welcome and the feedback Derrick. I have an Onkyo TX-NR929 and I used the Audyssey auto-calibration. I haven't tweaked the phase settings on the subs yet, and am using the auto phase control on the amp with results I'm fairly surprised at. As it stands, with the auto-calibration the bass is present, fairly clean and very underwhelming. Very light in the way of LFE on movies or gaming, and music is clean, bu the bass is not well balanced. If I turn up the subs, it seems a little boomy, XO is set at 40, though it appears Audyssey sets a XO for each channel pair? On a side note, is it better to use the gain directly on the sub for volume or a slight increase from the amp? I went with GIK Acoustics room treatments, and I've got corner bass traps floor to ceiling in the front behind the mains, panels on the side walls and three more bass traps on the back wall. Due to the room dimensions, the speakers are currently set in an acute triangle, not an equilateral. There's a door on one wall in between the speakers and the MLP but otherwise is sealed off. Love to hear any feedback!
Here's a pic from the MLP if it helps.