Niles Audio CM7SD manual Installing The Loudspeakers, INSTALLING THE LOUDSPEAKERS continued

INSTALLING THE LOUDSPEAKERS

It is often easier to lay the speakers out on the floor 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” (2.54 cm) to the sides of the mounting hole for the mounting clamps to secure the speaker to the drywall.

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

INSTALLING THE LOUDSPEAKERS continued

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.

7.If you’ve chosen to use insulation behind the loudspeaker, place it through the hole and center it on the opening. If using paper-backed insulation, it should be placed so that the paper side is away from the loudspeaker.

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 5-1/2” at one end (this allows for the extra width of the mounting

dogs). 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 2-3/4” of depth. 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. IMPORTANT: BE

VERY 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.

8.The speaker has black and red spring-loaded connectors (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.

9.Once the speaker wires are connected, carefully slide the loudspeaker into the opening hole (Figure 4). While holding the speaker in place, tighten the mounting screws to secure the speaker to the drywall. We recommend using a motorized screwdriver. Be careful not to over tighten.

NOTE: Do not carry the speaker by the tweeter or tweeter bridge. This may damage the speaker.

Figure 3. Spring-loaded speaker wire

connectors.

Figure 4. Installing a

CM7SD loudspeaker.

(continued on next page)

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

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