I was reading a review of the Anthem D2 and ARC at the following website and got pulled into the building of this reviewers music room. http://www.ultraaudio.com/twbas/twbas_20080715.htm
One thing in particular that caught my attention was how he addressed a room mode or standing wave by adjusting the phase of his subwoofer to effectively cancel out the standing wave frequency. He could do this this because his main speakers were full range to 20 Hz and with subwoofer placement and phase adjustment could cancel out the 27 and 40 something modes.
This was in one of the internal links and posted her for reference. http://www.ultraaudio.com/twbas/twbas_20051215.htm
This seems counter intuitive to me and the other informaiton posted so many times regarding proper alignment of phase and spending extra effort to get speakers and and subwoofers in phase for better, crisper, and cleaner reproduction.
I am sure I am missing some small detail, but given the reviewer's expertise and the hired professional he had come in, I would think their method was valid, but just curious how this compares to all the discussions previously on phase adjustment and if there should be a further discussion of when proper phase is required vs. when it can help with room accoustics.