What a timely article. I just got finished building my acoustic panels and maunted them where I thought they might work best, acoustically and aesthetically. The result was awful. Movies and music sounded muted and distant, never mind that the bass response was awful, almost dangerous with a 30dB gain from 60hz down to 40hz. I played around with panel placement to try to achieve some positive results. Here's what I found:
Simply taking the large panels off the back walls and using them to straddle the corners of the front soundstage reduced the bass gain to no more than 12 hz and it opened up the sound to remove the muted, distant sound.
I tried taking down the side wall panel but found the sound more pleasing with it in place. I had it in and out of place a number of times to confirm, so I know I certainly prefer to have side wall absorption in place.
I ordered a OC 703 equivalent (according to the sales rep) Ottawa Fiber OFI-48. I'll use this to experiment with bass traps in the two front corners and play around a little more with panel placement. This must be where HT becomes a hobby.
Dynaudio Focus 140, Era D5 LCR Center + Era D3 surrounds, SVS PB12-Plus, Integra DTC 9.8, Rotel RMB-1075, Toshiba Regza 52", Bell HD-PVR Satellite, Panasonic BD35, Escient Fireball, SMS-1, Panamax 5300EX.
Some people are like Slinkies. They serve no purpose but still put a smile on your face when you push them down the stairs.