Originally Posted by Tom Vodhanel
I tried to catch-up over there but the thread seems to be discussing a a lot of different issues. From what I saw, I would recommend the following as general thoughts...
1)try to stick with a single variable each time you make a change. That is, don't try new mic positions AND change the distance/phase on one or more subs. It can be time consuming but if you change more than one thing at a time you'll have a tough road to hoe figuring out what changed what.
2)I'd keep the speaker and sub location as-is for now. The one Audyssey engaged graph showed really smooth bass response. I may have missed something but the primary issue I saw was the deep upper bass null in the 80-160hz range. And this only seemed to occur with Audyssey engaged---correct?
Power Sound Audio
I've been tweaking even more since those measurements, and I've got it flat (+/- 3db) from 20hz to 7khz now.
I do cheat a bit - this "flat" response is with 1/6 smoothing (even in the bass region), but looking at it makes me smile.
I've still got a small issue with my FL/R crossover at 450hz, but that has nothing to do with the PSAs. Sounding really really good now!
Here's the subs +FL/R post-Audyssey response with NO SMOOTHING, flat until the crossover (80hz):
Y'know, I haven't really done any significant HT upgrades in years, but ever since getting my new receiver a couple months ago the sickness has really taken hold again. New PSA subs, new center channel, measuring equipment (and all the hours of measuring that entails), hours and hours of tweaking this and tweaking that - I forgot just how much fun this all is!
However, now that I'm in upgrade mode, I've been thinking that just maybe....maybe I do need just a bit more sub output after all.
Don't be surprised if you see an order from me for another XS15 in the near future!