Cavity installation with fixing blocks
continued...
06
Install speaker cable and insert insulation
Ensure all speaker cables are pulled through
to the speaker location with plenty of slack.
This will make it easier to connect the cable
to the speaker later on in the installation
process.
It is recommended to add sound absorbing
mineral wool inside the cavity to reduce
sound transmission behind the speaker and
limit cavity resonances.
This is essential in ceiling locations where the
mineral wool will also prevent debris falling
onto the rear of the speaker over time.
The mineral wool can rest against the back
of the speaker but not so much as to put
pressure on the panel.
Ensure the speaker cable is laid behind the
mineral wool and can not rest against the
rear of the panel.
03
Attach fixing blocks (x4 per speaker)
Position a fixing block under the plasterboard
at each corner of the aperture. Fasten the
thicker section of the fixing blocks to the
underside of the plasterboard using two
drywall screws secured through the front
face of the plasterboard.
NB: ensure there is no gap between the fixing
block and the sawn edge of the plasterboard
aperture.
Important: The fixing blocks are designed for
12.5mm (1/2”) plasterboard (1/2” and 5/8” in
North American markets).
Please contact your supplier if you require
fixings for an alternative plasterboard
thicknesses.
04
04
03
drywall screws
1
