Are you talking about mounting your speakers so that the baffle is flush with the wall? If so, this is a great idea because it eliminates any chance of SBIR. Of course, will only work with sealed or front ported speakers.
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continous/wall baffle when floor standing speaker behind AT screen
Considering the costs, upgradeability, resale value, etc., for L, C and R, I am leaning towards using floor standers instead of in-walls when installing them behind an AT screen.
The question is... should I use a continuous baffle for my floorstanders? The wall/continous baffle would probably be made of acoustics panels or sound absortion material.
I have doubts here, because this might affect the BSC of the speakers, right? So I might get a lot (or anemic??) of bass from them.
Speakers would be crossed over @ 80Hz aprox.
Looking forward to your help.
The question is... should I use a continuous baffle for my floorstanders? The wall/continous baffle would probably be made of acoustics panels or sound absortion material.
I have doubts here, because this might affect the BSC of the speakers, right? So I might get a lot (or anemic??) of bass from them.
Speakers would be crossed over @ 80Hz aprox.
Looking forward to your help.
1 - 4 of 4 Posts
Are you talking about mounting your speakers so that the baffle is flush with the wall? If so, this is a great idea because it eliminates any chance of SBIR. Of course, will only work with sealed or front ported speakers.
If the baffles are made of acoustic absorption material, they won't be actual "baffles". A baffle is an acoustically opaque materiel that doesn't allow sound from the front wave to interfere and cancel the out-of-phase sound from the back wave. Acoustic absorption material is porous to sound and not acoustically opaque. You would likely get some cancellation of soundwaves, especially in the bass and mid-bass regions. This will be caused by the long wavelengths of those frequencies to go "around" and through the baffles, causing the back wave to cancel the front wave.The wall/continous baffle would probably be made of acoustics panels or sound absortion material.
If you want to build a true "baffle wall", build it out of solid material like mdf or dual layers of drywall. Mount the speaker perfectly flush with the baffle wall to eliminate diffraction. Then mount some acoustic absorption on the surface of the baffle wall to reduce the mid and high frequency refections off the surface.
Also consider angling the L and R baffles to provide some toe-in for the speakers. Curving the baffle walls helps even more by reducing early reflections. See the attached article about baffle wall benefits and construction.
Craig
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Thanks for your reply.
@Alan P , indeed the idea is to avoid SBIR and I will consider only sealed or front ported.
@craig john , thanks for your clarification. I thought I only needed a flat surface flush with the speaker for consider it "baffle wall". Anyway, if it needs to be "solid" so it be. The thing is, if I make my wall with "cutouts" for my speakers, so I can install them flush and then cover that solid surface with acoustics absorption material... is there any other consideration for the kind of speaker I can use?? (apart from the fact I need them sealed or front ported).
Is BSC a real problem if the speaker is not specifically designed for a "baffle wall"?? Can it be EQed? Whay about active speakers with DIP switches? Are they enough to manage BSC?
@Alan P , indeed the idea is to avoid SBIR and I will consider only sealed or front ported.
@craig john , thanks for your clarification. I thought I only needed a flat surface flush with the speaker for consider it "baffle wall". Anyway, if it needs to be "solid" so it be. The thing is, if I make my wall with "cutouts" for my speakers, so I can install them flush and then cover that solid surface with acoustics absorption material... is there any other consideration for the kind of speaker I can use?? (apart from the fact I need them sealed or front ported).
Is BSC a real problem if the speaker is not specifically designed for a "baffle wall"?? Can it be EQed? Whay about active speakers with DIP switches? Are they enough to manage BSC?
1 - 4 of 4 Posts
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