Ceiling speaker backboxes

["Tracey Gardner" <tracey.gardner@xxxxxxxxxxxx>]

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.