Phoenix Gold ATC8DM - Manual

Congratulations on your purchase of the Phoenix Gold

Innovative Home ATC Dual Mono (DM) In-Ceiling

Speaker System. This product is designed to reproduce

the audio portion of your home entertainment environ-

ment with accuracy and detail that will satisfy the most

discriminating listener.
Please read this Installation Manual to ensure the

proper installation and performance of your ATC

Series speakers.

Preparing for your Installation

Gather the necessary tools for your installation.

You will need the following tools:

1) A Keyhole or Drywall Saw

2) A Phillips Screwdriver

3) Masking Tape

4) A Pencil

5) A Tape Measure

6) A Stud Finder (recommended)

7) Your ATC-DM speaker

Placement

Plan your speaker placement carefully. Make certain

that electrical, plumbing and any other services will not

interfere within the ceiling where you plan to install your

speakers. The ATC-DM speaker can be mounted in

walls, but are typically used in ceilings. The speaker

should be located so that it provides even coverage

at your listening position.

New Construction

If you are installing your speakers in new construction

before the finished walls go up, Phoenix Gold Innovative

Home offers New Construction Brackets, which provide

a stable frame that can be fastened to the wall studs or

ceiling joists on 16” or 24” centers. This allows the

sheet rock or other surface covering to be installed

and provides a template to cut the opening for the

ATC-DM speaker.

ATC8DM

Use a stud finder to locate the joists behind the ceiling

surface. Also, you should now check for obstructions

like cross bracing in front of and behind the desired

speaker location.

8” 2-Way In-Ceiling Speakers

Existing Construction

In most modern buildings ceiling joists are positioned

on 16” centers, providing a space between the joists of

approximately 14

3/8

”. The specifications chart shows

the appropriate cut out sizes (p. 4). Additionally, you

should allow an extra

3/4

” in all directions behind the

ceiling surface to allow room for the screw clamps that

mount the speaker to the ceiling to swing into position.

ATC-DM Summed Mono Speaker Operation

The ATC-DM speaker is designed for use in areas where

even distribution of sound is desired but stereo imaging

is not practical because of space limitations, such as a

bathroom or long hallway.

With a dual voice coil woofer and dual tweeters, the

ATC-DM speaker can sum stereo amplifier channels

into a mono audio signal. Two pairs of input terminals

allow connection of both channels from a stereo amplifier

to a single ATC-DM speaker. Set the switch on the back

of the ATC-DM speaker to 16

Ω

for summed mono

operation.

Caution! Amplifier damage will occur if the ATC-DM is

set to 8

Ω

with two amplifier channels connected!

ATC-DM Conventional Speaker Operation

An ATC-DM speaker can be used to reproduce a single

channel of audio by making connection to either set of

input terminals and setting the switch on the back of the

speaker to 8

Ω

. In this configuration, both woofer voice

coils and both tweeters are driven in parallel by the

connected amplifier channel.

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