Glass and brick behind the speakers..

[M@ver1ck]

Does anyone with an acoustics background care to comment on this?
What would the effect be if you had a wall behind speakers that only went 3/4 the height of the speakers, and then had glass all the way to the ceiling.

In terms of having a wall for bass reinforcement, would the glass be considered more like a wall, or more like the speaker being in a free space, or (as I suspect) the worst of all worlds?

 

[Tenson]

It really depends on the glass and how much isolates the sound from the other side. Bass will always pass easier than mid and high frequencies though. In the case of a typical domestic double glazed window I've seen absorption coefficients (i.e. sound that passes though is considered absorbed from the room)around 0.2-0.3 from below 150Hz.

 

[M@ver1ck]

So.... translated.... does it make things better or worse...

 

[stevec67]

You can't say. There are too many variables.

 

[M@ver1ck]

I think it makes things worse at my place. The solidity of bass is gone. :-(
Problem is I have a crazy living room with not a single straight 8-10 feet wall in sight. Not sure what kind of speakers I should try.