I had a new idea for incorporating a rear channel in a small room. Hoping some experts can chime in to let me know if the idea has merit.
I'm yet another poor soul who is stuck with a 5.1 setup in a small room (11x11). No, the couch can not be moved from the back wall.
I understand conventional 6.1 and 7.1 speaker placement was not designed to work in this scenario. Here are the classic blunders for small room rear channels:
1. Rear channel in-wall speakers: too close to listening area. Too easy to localize, ruins the surround sound effect.
2. Rear channel mounted on ceiling: sounds like it's coming from overhead instead of behind, ruins the surround sound effect.
Here's my concept, not sure if anyone has though of this before:
Mount the rear speaker(s) on the ceiling in the center of the room, firing down and angled slightly against the wall to create reflection.
Next, hang a 2'x4' 2" thick Owens Corning acoustic panel vertically against the wall, covering the speaker.
My hypothisis: Most of the sound waves traveling strait down will be absorbed and diffused, since they are passing through the length of the panel.
Reflected sound bouncing off the back wall might be easier to hear, since waves would pass through panel at a different angle.
Hoping the reflected sound would have the most presence, and make it seem as if the sound is coming from behind.
I'm thinking about hanging three acoustic panels above my couch. This should also make my room sound quite a bit better. I'm planing to space each panel apart about 6" ... Wondering if reflected sound will pass through the gaps.
In my case, I'm consitering a 6.1 setup, using a polk cs1 as a rear channel in the center of the room. I guess a 7.1 setup would work too, but I'm not sure there's a need to cram all of these speakers in a small room.
Ok Brainiacs... is this worth testing? I understand I won't know how it sounds until I try it... just looking to see if anyone wants to shoot me down before I exert the effort.
If this is in fact a new idea that works... I'm dubbing it the BRADLEY technique!
Thanks guys, -Bradley