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18
PCI 45DC
PCI 45DC Installation Guide
PCI 45DC Back Can Installation
WARNING: To avoid potential damage to your loudspeaker, ensure that the
power amplifier 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 procedure below describes the installation of the back can into a typical
2" x 8" joist ceiling with 16" centers, with drywall/plasterboard already installed.
After the PCI 45DC back can is installed and wired, the paint mask can be added for
painting and finishing. The loudspeaker can be installed into the back can later.
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 speaker, using a stud-finder.
WARNING: Make sure that there are no power lines, other cables, or plumbing
such as water, sewer, gas lines in the chosen cutout location. Also make sure
that the location is far enough from ceiling joists so that all the clamping
mechanisms can operate without interference.
2. Carefully mark out a square in the desired location and carefully cutout
a hole in the drywall/plasterboard. Remove any dust and debris from the hole
(Fig. 12).
3. Run the speaker wire from your amplifier to this location, leaving enough slack
to allow for the connection (Fig. 13).
4. If the loudspeaker assembly is already fitted to the back can (during shipping
for example) then remove it from the back can by undoing the screws holding
it in place (Fig. 14).
5. Remove the block of shaped foam inside the back can. This is used to protect
the speakers during shipping.
6. A square sheet of acoustic foam is supplied with the packaging. Install this
foam to the inside of the back can. (Note that the foam is not shown in the
illustrations below.)
330 mm (13.0")
Fig. 12. PCI 45DC Cutout Dimensions
Fig. 13. Speaker Wire
Fig. 14. Removing the loudspeaker from the back can
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.
WARNING: Before switching the amplifier ON, double check that all connections
are secure and that the polarity is correct.
Note that the speaker wire connections are made to the two screw terminals on the
outside of the back can.
We recommend the use of insulated speaker wiring of between 12 and 18 AWG.
1. Pull out the ends of the speaker cables from the cutout aperture, and
strip off approximately 8 mm (1/4") of the outer protective layer from each
conductor.
2. With the help of an assistant, hold the back can up near the aperture.
3. The speaker cable may be wrapped around the bar near the screw terminals on
the back can (Fig. 15).
4. The positive wire from your amplifier should connect to the positive terminal
of the back can. The negative wire from your amplifier should connect to the
negative terminal of the back can. Secure both wires by tightening the two
small screws. Make sure that the polarity is correct and the wires are secure.
5. Make sure that the speaker cables are secured to the ceiling joists so they will
not move and rattle about during operation. Also make sure the cables are not
near any screws or sharp metal edges that may cut the insulation.
Installing the Back Can
1. With the back can wired correctly as shown above, connect a secondary safety
cable to the metal mounting loop on the rear of the back can. The other end
of the secondary safety cable should be secured to suitable strong mounting
point in the ceiling (Fig.16).
2. With the eight back can mounting clamps in the stowed (inward) position,
press the back can into the drywall aperture. Be careful not to pinch the
speaker wires or your fingers (Fig.17).
19
Quick Start Guide
Fig. 15. Wiring the back can
Fig. 16. Connecting the secondary safety to the back can
Fig. 17. Installing the back can
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