Re: Ceiling speaker backboxes

["Davey" <DB1001@xxxxxxxxxxxxxxx>]

it's an insulating material - type of thing you'd insulate your roof or
cavity wall with.
fire proof as well.

HTH

Davey
----- Original Message -----
From: "Christopher Purves" <CHRIS_PURVES@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Monday, January 31, 2005 7:36 PM
Subject: Re: [ukha_d] Ceiling speaker backboxes


>
> Hi Guys,
>
> Forgive my ignorance, what is rock wool?
>
> Chris
>
>  ----- Original Message -----
>  From: Tracey Gardner<mailto:tracey.gardner@xxxxxxx>
>  To: ukha_d@xxxxxxx<mailto:ukha_d@xxxxxxx>
>  Sent: 31 January 2005 18:50
>  Subject: [ukha_d] Ceiling speaker backboxes
>
>
>
>
>  I've boxed all my ceiling speakers in using plasterboard off-cuts and
>  Gripfill.
>  The space between the joists has rockwool in which also goes over the
top
> of
>  the speaker boxes.
>
>  Tracey
>
>
>  >
>  > When installing speakers into ceilings is it worth creating some
kind
> of
>  > back box for them. I was thinking of this for two reasons,
firstly I
> guess
>  > that it could improve the sound coming out of the speaker by
limiting
> the
>  > amount of air space behind this speaker and secondly to try to
reduce
> the
>  > sound transmission to the room above. I was thinking about
either
> making
>  the
>  > boxes out of expanded sheet insulating material (such as
Celotex) or a
>  > simple plasterboard box with some rockwool/fibreglass around it.
>
>
>
>
>
>  Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
> Yahoo! Groups Links
>
>
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>
>