Bouncing Rear Surrounds of Back Wall

[zachd73]

I recently got a front projector installed and my friend who is handy helped me out. While we were at it I decided to have him help me move my surround speakers down a foot.

I have two semi-cheap JBL bookshelves for surrounds. They were mounted about 3 feet over ear level above my couch. The couch backs up to the rear wall so they can really be behind the listener much at all, instead they are directly to the side.

I felt that they were so high over my head they were not very effective.

So as I was watching him move them down I thought why not move them down and face them back towards the wall at about a 45 degree angle down and to the back.

In theory, the sound will now bounch off the back wall and be almost directly behind the listener at ear level.

I didn't get to try it out yet as I haven't hooked all the speakers back up yet but I'm anxious to see if this crazy scheme works or not.

Anyone tried it? I can't imagine I am the first person to have thought about doing this either out of necessity or for the hell of it.

[Twitch9]

The problem with doing this is you will no longer hear the sound of the speakers instead you will hear the reflection from the wall, another problem will be the delay in the sound because of the reflection. Your best option would be to turn the speakers in facing each other on the back wall so they are parallel with the wall, more like they were mounted on side walls., i don't think you will like the sound of your speakers with this current setup.

[Beta Man]

plus your wall will absorb some frequencies, and not others.

[prerich]

I believe the best suited speakers for ambient sound are Dipoles or Bipoles

[Sir Terrence]

Originally Posted by Beta Man

plus your wall will absorb some frequencies, and not others.

Walls will not begin to absorb frequencies until well into the second or first octave(20-80hz). Everything above that is likely to be reflected. In order to absorb sound, that wall has to vibrate, and they usually do not do that until you get below 80hz.

[aramis109]

Originally Posted by Sir Terrence

Walls will not begin to absorb frequencies until well into the second or first octave(20-80hz). Everything above that is likely to be reflected. In order to absorb sound, that wall has to vibrate, and they usually do not do that until you get below 80hz.

... I learn so much $#!+ on these forums.

[JimShaw]

I use to own Bose and Bose recommends to bounce all their speakers.

(now for the Bose haters) I grew up and sold them years ago.


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