Axiom Home Page Forums General Discussion Technical Questions Wall Mounting Issues on Surrounds

Hi Robhow,

Corners are seldom kind to the sound of any speaker, except one that is really bass-deficient and you want to use the natural but uneven bass boost that results from corner placement.

So if you keep the QS-4s six inches away from the corner, it should be okay. How about 12 inches from the corner? Possible or not?

Can you check out the sound quality and envelopment in the soundfield first before you do any drilling and permanent mounting?

Regards,

I can experiment with speaker placement, but the wiring has already been run to the corners of the room with speaker terminals and coverplate. If I move the speakers 12 inches from the wall, there would be too much exposed wire. Should I purchase another type of speaker that would work better in the corners. Given you new mounting brackets, should I place bookshelf speakers in the corners

Hi,

No, bookshelf speakers woudn't work better in the corner. If anything, the QS's quadpolar radiation should average out some of the corner's boundary effects better than a direct radiator. It's the intersection of two (or three) boundaries--two walls (and a ceiling)--that change the tonal character of any speaker placed in a corner.

Regards,

Hi Alan,

I am using QS8's on the side wall about 6 inches away from the back wall. I have them set to small, so nothing under 80hz is fed to them, with my home theater sub behind the couch being fed everything under 80hz. Is the bass boost as much of an issue if you are not running the surrounds full range?

I mounted the QS8's that close to the wall because my seated position is only 2 feet from the back wall, and mounting them in front of me is not an option.

Thanks,
PatrickS

Hi Patrick,
You're right, or at least partly so, about running your QS8's set to "Small", so the back wall shoudn't be as significant a factor. But corners in some rooms (mine) seem to supply a horn-loading effect. It was very obvious when I used the pink noise test signal, so I moved my surround out about 2 feet from the corner and the sound improved markedly.

If you're getting a good sense of envelopment in the soundfield and you don't notice any significant tonal differences between the two surrounds playing movies or music, then it's okay. Don't worry about it.

Regards,