Installing ThE LOUdSPEAKERS

IMPORTANT: BE VERY

It is often easier to lay the speakers out on the fl oor and then transfer the locations to the ceiling with a laser plumb bob. If you are using new construction brackets, place string across the centers of the bracket to provide a way to align the bracket to the laser. Remember, you will need 1” to the sides of the mounting hole for the mounting clamps to secure the speaker to the drywall and you will need at least 5” of clearance to one side within the opening for the CM4PR’s Rear Wave Enclosure.

1.Once you have determined a possible position for the hole cutout, drill a 1/8” pilot hole just barely through the ceiling (1/2” to 5/8” deep in most homes) in the center of your proposed loudspeaker location. BE VERY

CAREFUL NOT TO DRILL THROUGH EXISTING WIRES, PIPES, OR STRUCTURE. IF YOU FEEL ANY EXTRA RESISTANCE AS YOU ARE DRILLING, STOP.

2.Cut a foot-long piece of coat hanger. Bend the wire (creating a right angle) leaving 3-5/16” at one end (this allows for the extra width of the Rear Wave Enclosure). Poke the “L-shaped” wire into the pilot hole and turn it in a complete circle and move it into the ceiling cavity to make sure you have approximately 3-5/16” of depth within the ceiling. If the wire’s movement is obstructed by anything, fill the hole(s) with spackle and try another location (If there is any risk of uninsulated electrical connections within the ceiling area, use insulating gloves or other materials or consult with an installation professional before proceeding).

3.If the coat hanger moves freely in a complete circle and you have sufficient depth, tape the template to the ceiling and proceed to layout the other speakers. Once you are comfortable with all speaker locations, use a pencil to lightly outline the circular template.

4.Drill the starting point of your cut with a 1/4” bit.

5.If you are cutting drywall, use a sheetrock or keyhole saw. Cut the hole with the saw at a 45° angle. That way the drywall section can be replaced cleanly

if there is an unseen obstruction behind the wall.

CAREFUL NOT TO SAW THROUGH EXISTING WIRES, PIPES, OR STRUCTURE. IF YOU FEEL EXTRA RESISTANCE AS YOU ARE CUTTING, STOP.

NOTE: DO NOT INSTALL LOUDSPEAKERS BEFORE THE DRYWALL HAS BEEN COMPLETELY FINISHED AND PAINTED.

6.Prep the speaker wire by stripping 1/4”-1/2” from each speaker lead. Twist the strands or tin the leads with solder to ensure there are no stray strands that could short and possibly harm the amplifier.

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7.The speaker has black and red spring-loaded connectors attached to the Rear Wave Control enclosure (Figure 3). Black is for the negative

(–) wire and red for the positive (+). It is important to observe correct wiring polarity. If you have wire other than black and red, make sure you connect it the same on the amplifier end as the speaker end. Failure

to do so will adversely affect the loudspeakers’ performance. Supports are provided to secure the speaker wire with wire ties. (not included)

8.A safety wire anchor is provided on the Rear Wave Control enclosure should you be required to secure the loudspeaker assembly to a roof beam or rafter (Figure 4).

9.Once the speaker wires and safety wire are connected, raise the mounting clips to a vertical position as shown in Figure 5 and carefully slide the loudspeaker with attached Rear Wave Control enclosure into the opening

hole (Figure 5). CM4PR loudspeakers feature spring loaded mounting clamps that allow the speaker to remain flush with the ceiling To remove a CM4PR from the ceiling, simply grasp the bezel edge and pull on the speaker slowly. This will cause the mounting clamps

to disengage and free the loudspeaker.

NOTE: DO NOT CARRY THE SPEAKER

BY THE TWEETER OR TWEETER POST.

THIS MAY DAMAGE THE SPEAKER.

NILES AUDIO – 1-800-BUY-HIFI – 1-760-710-0992

Figure 3. Securing the speaker wire with a wire tie.

Figure 4. Attaching a safety wire.

Mounting clamps require 1” clearance to the sides of the hole opening

Niles Audio CM4PR manual Installing ThE LOUdSPEAKERS