Subs are like real estate ... location, location location.
I decided to move my Noesis mains out from behind the AT screen to give them some room and create the perfect listening triangle for stereo. I built some box stands and then took apart the front stage. that involved moving the OS's out and moving my front wall acoustic panels. I then place the center Noesis 212 on top of a single centered OS and located the other OS on a side wall location. Luckily I had an in-wall cable with Speakon connects that I removed and soldered on XLR's for the OS input and SSP output. Then I setup the speakers in the best location, ran a quick 3 position Audyssey and put on some music.
I started with just the front and center OS engaged and the speakers sounded great but there was no bass at the LP. The was some bass on the wall seat where the OS horn exit was located but the rest of the room was bass free. I tried s few movie clips and again, no bass ...
Then hooked up the second OS (2/3rd's) down the opposite wall as the front OS horn exit corner and re ran Audyssey (80Hz xover). I did the same music and movie clips and had bass but didn't like the sound feel of all that bass energy coming from the side. I flipped the side wall OS reversing the horn exit and still didn't like it.
OK, now I am exhausted and pissed so what do I do? I scrap the whole plan and revert back to the original dual OS's up front and the Noesis on top of the OS's (on Great Grammas). This time I moved the Noesis all the way out to the edge of the screen and increased the toe-in. I re ran Audyssey and by 9pm last night after 12 hours of hanging/re-hanging panels and humping big speakers and giant subs all over the room (alone by the way) I am back to essentially where I began the day
. We ( the wife was amused by my day of frustration) then sat down and watched a movie and it sounded fantastic.
My take away is that it is fun to experiment and try new things but the while the grass can appear greener, it very often isn't. The new wider placement of the Noesis and OS's seems to have made a noticeable improvement in sound stage. I will run some measurements today and see what that shows but I am now convinced that this configuration is best in my asymmetrical room. Edited by RMK! - 11/10/13 at 8:24am