Originally Posted by bobdit
Too late. I don't think I'd be able to reemerge
Those 2 SVS subs are HUGE. I have nowhere else to place them in the room. My wife will give me the look if I pull out the tape measure again
. Can I mess with the Phase thing like Keith did?
Plenty of room for all (cackle). We're lonely down here....
More seriously, I'd also strongly recommend picking up an OmniMic kit for doing pre/post-calibration accessment. It will be the best investment of $350 you'll spend, give or take, as you'll be able to run test sweeps for subs, L/sub, R/sub, L/R or L/C/R + subs, and track the differences in response in the critical < 200 Hz region where Audyssey is applying its 'secret sauce' with the most granularity, due to the XT32 filtering. In addition, you can run charts that are at a higher resolution (1/12 or 1/24th smoothing), that can tell you where your peaks/dips are occuring more specifically than you'll see from the 1/6th smoothing on the Audyssey Pro charts.
You may find that rather than having a consistent trough (sustained dip) for the 60 to 100 Hz region on your front speakers, there's a particular region that's distorting the response that can be addressed by either toe-in, or mild repositioning of your mains. That may help you overall more than trying a subwoofer phase adjustment on the fly (assuming that both your mains and subs are wired to be in phase). Likewise for your subs.
I would agree with SOM that unfortunately, the placement of your subs isn't neccessarily optimal to get flat bass response, especially located in the front of your room by the L/R mains. I've got WAF too (otherwise I'd have three Seaton Submersives rather than two HSU ULS-15 LOL), but have you considered moving your subs closer to the main listening position, (i.e. flanking either side of that area), or mid-room/across from one another? One thing I see is that you've got trims that are quite low for your satellites (-9db or lower, close to the -12 db maximum adjustment Audyssey makes). That implies that Audyssey is applying a lot of collective energy to correcting those channels relative to the subs, which are -4 db.
Regardless, relocating the subs, as painful as it can be, and measuring what happens to your overall bass response for L/R+subs will IMO take you a long way toward correcting the crossover region. The closer you can get to a flat response, the better the results you'll see by doing distance tweaks on your mains (mentioned in the Audyssey and Audyssey Pro FAQ) ; the phase adjustment is really a last resort pending other steps. Regardless, these should ONLY be attempted if you've got an OmniMic, REW or the equivalent independent measurement kit to verify what you're actually accomplishing as you test it.
One other thing - when you ran Pro, were you able to capture 75 db response for both subs (+/- 3 db) on the level-matching screen?Edited by sdrucker - 11/28/12 at 10:26am