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#328928 - 11/19/10 02:25 AM In-wall bleed through
sd vidiot Offline
newbie

Registered: 11/19/10
Posts: 1
I'm thinking of investing in 3 (LCR) M22 in-walls which will be behind my AT screen. Does anyone have experience with sound bleeding through into neighboring roooms? Anything to do to prevent this?

Thanks!

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#328948 - 11/19/10 10:22 AM Re: In-wall bleed through [Re: sd vidiot]
cb919 Offline
connoisseur

Registered: 02/17/09
Posts: 1165
Loc: Ottawa, Canada
Welcome SD. I have the in/on wall version of the M22s and VP150. I have no specific issue with sound proofing (bleed through) of these speakers, although I did build and mount them in a 2x6 wall instead of a 2x4 wall and have a layer of safe n sound insulation behind them. That was done as part of my overall soundproofing of the theater room and not specifically for the in/on wall design. I will say that in a standard 2x4 wall construction you won't have room for much insulation behind them in wall installation. However as long as the back of the cabinet is not in direct contact with the drywall on the opposite side I don't think this will be an issue beyond general sound proofing of your HT room.

Cheers,
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Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1

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#328962 - 11/19/10 11:56 AM Re: In-wall bleed through [Re: cb919]
tomtuttle Offline
axiomite

Registered: 06/20/03
Posts: 8488
Loc: Tacoma
What Dan said. Fiberglass batting insulation is your friend.
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#328971 - 11/19/10 12:59 PM Re: In-wall bleed through [Re: sd vidiot]
alan Offline

connoisseur

Registered: 01/29/02
Posts: 3262
Loc: Toronto/New York/parry Sound
Hi sd vidiot,

To add to the above comments, at Axiom we anticipated "bleed-through" as a potential problem with in-wall speakers so when when we developed our in/on wall lineup, all of the Axiom models have a sealed "backbox" (sealed to the interior of the wall, that is) to prevent rear-radiated sound from venting into the wall cavity. The ported models are ported to the exterior in the room in which the speakers are used. By using the back enclosure, we could also make the performance and design of each in/on-wall speaker consistent rather than having it be influenced by the variables of interior wall cavities.

Regards,
Alan
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Alan Lofft,
Axiom Resident Expert (Retired)

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#328975 - 11/19/10 01:21 PM Re: In-wall bleed through [Re: alan]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13571
Loc: Iowa
depending on how thin your walls are, even with the prevention Axiom anticipated, there would still be a chance of hearing bass vibrations, however, if your system is setup correctly, that would be most likely coming from the subwoofer, if you have one.
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#328980 - 11/19/10 02:23 PM Re: In-wall bleed through [Re: SirQuack]
RickF Offline
axiomite

Registered: 02/26/05
Posts: 5210
Loc: Vero Beach, Florida
Sometimes, every now and then I get bleed through issues and found a solution that works best for me ... my lovely (and she is lovely) wife yells at the top of her lungs and the volume quickly decreases from the upper 90s db levels to the mid to upper 70db levels. Problem solved!

It looks like she's yelling anyway.








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Rick
Our Room

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#328983 - 11/19/10 02:51 PM Re: In-wall bleed through [Re: RickF]
bdpf Offline
aficionado

Registered: 06/28/08
Posts: 769
Loc: Toronto, Canada
So your wife is an audio expert...
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Bruno
M80s/VP180/QS8s/EP600/AVR-890
------------------------------------
"The problem is choice..."

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#329012 - 11/19/10 09:28 PM Re: In-wall bleed through [Re: SirQuack]
Ya_basta Offline
connoisseur

Registered: 06/23/07
Posts: 4299
Loc: Sitting down somewhere
Originally Posted By: sirquack
depending on how thin your walls are, even with the prevention Axiom anticipated, there would still be a chance of hearing bass vibrations


To elaborate on Randy's point, I think the most appropriate analogy, and one that all us guys can relate to, is farting. Although we wear underwear and pants that act as some isolation; the sound, vibration, and smell still "bleed" through the back of the pants.

Yup, that's probably the best analogy.


PS. Can anyone tell that I'm bored tonight grin ?
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The only reasonable argument for owning a gun is to protect yourself from the police.

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#329050 - 11/20/10 10:41 AM Re: In-wall bleed through [Re: sd vidiot]
a401classic Offline
connoisseur

Registered: 11/29/06
Posts: 1328
Loc: Alpharetta, GA
Originally Posted By: sd vidiot
I'm thinking of investing in 3 (LCR) M22 in-walls which will be behind my AT screen. Does anyone have experience with sound bleeding through into neighboring roooms? Anything to do to prevent this?

Thanks!


Well, I do. Have experience with this, anyhow... And I can put numbers to it!

With my family watching me, and looking at me and each other as if I were insane or something, I turned up the volume on my T2's, which are installed in a 2X6 wall with double R-19 insulation. The other side of the listening room is a bathroom. With the volume at 75 dB @ 2m on the front side, the volume on the back side (with the hall and bath doors closed) was a surprising 67 dB. As was commented on already, it was the lower frequencies that were bleeding through.
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Scott

My HT

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#329072 - 11/20/10 01:32 PM Re: In-wall bleed through [Re: a401classic]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10415
Loc: Calgary, Alberta
The question is would that be the same amout of bleed through if they were standard M2 bookshlef speakers mounted on the wall?
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