Niles Audio CM7SD Distance from speaker to amplifier, wire gauge, PARTS GUIdE, Less than 80 feet

PARTS GUIdE

PACKAGE CONTENTS FOR:

CM7SD

(1)Niles CM loudspeaker, (1) Magnetically attached round grill, (1) Hole template with painting standoffs, (1) Owner’s manual, (1) Warranty card.

INSTALLATION CONSIdERATIONS

Recommended tools for installation:
• Cordless screwdriver	• Measuring tape	• Painters tape
• One inch #2 Phillips tip	• Stud fi nder	• Drop cloth
• 1/8” Drill bit	• Spackle	• Optional - a 24” x 24”
• Drywall saw	• Wire stripper	piece of R19 insulation
• Laser plumb bob	• Cable ties
• 12” -14” Coat hanger wire	• Pencil

INSTALLATION CONSIdERATIONS continueD

NOTE: bE VEry carEful whEN lOcaTiNg ThE spEakErs. VErify all lOcaTiONs arE clEar Of ObsTrucTiONs bEfOrE cuTTiNg ThE firsT hOlE.

Each speaker requires two-conductor wiring of suffi cient gauge. The gauge depends on the length of the wire. For recommendations, please refer to (Figure 2). (Stereo Input loudspeakers require four-conductor wiring).

Distance from speaker to amplifier	wire gauge
Less than 80 feet	16
80 to 200 feet	14
More than 200 feet	12

Figure 2. Speaker Wire Gauge Guide

The CM7SD requires an 8-1/2” (21.6 cm) diameter hole opening and a minimum of 2-3/4” (7.0 cm) depth when measured from the exterior face of the drywall. To the sides of the hole you will need 1” (2.54 cm) for the mounting tabs to clamp the speaker to the drywall.

2-3/4" (7.0 cm)

Depth from Drywall

Exterior

CM7SD 8-1/2” (21.6 cm)

Diameter Hole Opening

When running loudspeaker wire inside walls or ceilings, use special jacketed cable (CL-2 or CL-3 rating) to protect the wire and for fi re prevention. In some municipalities, conduit is required. For a trouble-free installation, low voltage wire such as loudspeaker wire must be in accordance with the National Electrical Code and any applicable provisions of the local building code. If you are unsure of the correct installation techniques, wire jacket, or type of conduit to use, consult a professional audio/video installer, building contractor, or the local building and inspection department.

Figure 1. Required dimensions for installation in ceiling.

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