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Back Can S/PMK 8/PMK 6/PMK 3
Installation Guide
Back Can Installation
WARNING: This procedure requires the use of personal protection equipment, such as safety glasses and gloves.
WARNING: To avoid potential damage to your loudspeaker, ensure that the power amplifi er is switched OFF prior to connecting or disconnecting any cables.
WARNING: Make sure that there are no power lines, other cables, or plumbing such as water, sewer, gas lines in the chosen location.
The Back Can S is an optional back can that can be used for the PCI and QCI 6DC/8DC in-ceiling loudspeakers.
The procedure below describes the installation of the back can into a typical 2" x 6" ceiling with 16" centers, with drywall/plasterboard not yet installed.
After the back can and drywall is installed, the PCI and QCI 6DC/8DC ceiling loudspeakers can be wired and installed, and the paint mask added during wall painting
and finishing.
Procedure
Follow the procedure steps below in the order in which they are presented. Read all
the instructions before starting.
1. Locate a suitable mounting position for the loudspeaker that will off er
optimum acoustic performance for the listening environment and audio
system, and that is also practical and aesthetically pleasing.
2. Carefully move the back can to the chosen location between the ceiling joists,
and lift it to the desired height, allowing enough room for the speaker wire to
enter the cable gland (Fig. 1).
3. Make sure that the back can is plumb and level, then attach the back can to the
ceiling joists using 5 screws or nails per stud.
Wiring the Back Can
WARNING: To avoid potential damage to your loudspeaker, ensure that the
amplifier is switched OFF prior to connecting or disconnecting any cables.
The speaker wire connections are made to the cable entry gland into the back can.
A loop is provided to secure the cable before it enters the cable gland.
1. Loop the speaker wire once around the provided cable loop, and pass the cable
through the cable gland and into the back can (Fig. 2) and past the acoustic
foam inside the back can. Leave enough slack to make the connections when
that time comes. Tighten the cable gland, and tie down the speaker cable
to prevent it moving and rattling in operation. Make sure that the speaker
cable does not come into contact with nails or screws that might damage the
electrical insulation.
2. Once the speaker cable has been brought through the gland, and the gland
tightened, fi re-retardant sealing mastic should be used to seal the assembly.
Fig. 1 Install the Back Can between the joists
Loop for strain
Fire-retardant
relief of cable
sealing mastic
Cable Entry
Fig. 2 Install the wiring into the Back can
Optional Pre-Mount Kit Installation
The optional Pre-Mount Kits provide a circular surround for a strong mounting
surface for the clamping mechanism of the loudspeaker, and they make it easier
to install the drywall.
The PMK kits can be used with or without the back can.
Preparing the PMK Pre-Mount Kit
1. Each pre-mount kit consists of two mounting brackets, a circular frame,
and four small clips that help secure the brackets to the frame.
2. Attach the mounting brackets to the frame (Fig. 3).
3. Press the four clips in place, to hold the brackets in position.
Fig. 4. PMK assembly (PMK 3 shown)
Quick Start Guide
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2
3
Fig. 3. Installing the PMK brackets to the frame
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