
10
Installation
Cutting cavities
• Remove the denim pad from the
BackboxSW and set it aside for use
when fitting the speaker.
• Cut each cavity into the masonry
using the combination of an angle
grinder and a jackhammer drill.
When the cavity is close to size, test
the fit of the BackboxSW in the cavity
occasionally.
Cutting a cable channel
• Using an angle grinder or hammer
and chisel, create a channel that
runs into the cavity. This will allow
the speaker cable to be pulled into a
suitable position within the cavity.
We recommend the cable is run in a
suitable conduit to protect it.
Leave enough cable slack to allow
connection to the speaker when it is
held away from the cavity.