Cavity installation with backbox
For new builds or full refurbishment where sound transmission
needs to be reduced or fire rating is required.
01
02
Locate cable and position backbox
Choose speaker location and create
aperture by following steps 01 + 02 on
page 05. Use the cut-out template as a
guide.
Next, pull the speaker cable through the
rubber grommet in the top side of the
backbox and ensure speaker cables are
pulled through with a manageable length
available.
Apply the Backbox through the hole at an
angle until the end cheeks rest against the
back side of the plasterboard.
Use the fold out tabs at either end of the
backbox to help support it in a vertical
position before securing it to the
plasterboard.
A 75mm/3” cavity depth is required to fit a
BackboxCV or BackboxFR.
Fix backbox
Using a minimum of 8 drywall screws (4 at
each end) fix the backbox by screwing
through the plasterboard and self tapping
into the flat end cheek areas at each end
of the backbox. When positioned correctly,
the backbox’s speaker mounting lip with
soft foam surface should be visible along
all four sides of the aperture.
Connect the speaker by following step 05
on page 07.
Side View
Using the
fold out tabs...
08
Plasterboard
Fixing screw
Mounting
Lip
Backbox
Side View
Front View
Fixing screw
01
02
A2
