Phoenix Gold ATC6DM User Manual

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ATC6DM

6.5” 2-Way In-Ceiling Speakers

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 environment 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

INNOVATIVE HOME

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.

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 16Ω for summed mono operation.

Caution! Amplifier damage will occur if the ATC-DM is set to 8with 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 8Ω. In this configuration, both woofer voice coils and both tweeters are driven in parallel by the connected amplifier channel.

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.

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.

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.

Phoenix Gold ATC6DM User Manual

After selecting the mounting location, mark the hole to be cut out. A template is provided in the speaker box. Locate and align the template, then mark with pencil on the ceiling surface. If you are unsure whether there are obstructions behind the ceiling surface where the speakers are to be mounted, cut a small hole in the center of your marked mounting location. Holding your drywall saw at a 45 degree angle (See Figure 1), cut a square hole that you can use to locate any obstructions, should they exist.

ROOM

Figure 1

The 45 degree wedge shape of the removed surfacing material will make replacement, if necessary, a much easier task and yield a better finish when patching the work.

Once it has been determined that there are no obstructions, cut the hole to mount the speaker using the drywall saw at a 90 degree angle to the ceiling surface. Cover the raw edges of the wallboard with masking tape (See Figure 2). This will prevent the back pressure of the speaker from blowing loose gypsum dust out and onto the painted ceiling surface after installation. Do not allow the tape to extend more than 1/4” beyond the edge of the hole into the room. The frame of the speaker will cover and hide the tape.

Masking T.ape

ROOM

Figure 2

Next run your speaker wire to your speaker locations. A UL rated CL3 speaker wire is recommended when running wire inside your walls. In many areas it may be required by code. When running your speaker wire you should avoid having the speaker wire run parallel to the 120V power lines to avert picking up hum and interference from the power service. If the speaker wire needs to cross a 120V power line at a right angle this is acceptable and will not create a problem.

If you are uncomfortable with running the speaker wire yourself in existing construction, it is recommended that you retain a qualified custom home installation specialist or electrician.

Installing the Speaker

Installation Tip! To further enhance the performance of your ATC-DM speaker, the ceiling joist cavity where you plan to place your speaker can be stuffed with a generous quantity of fiberglass insulation. Stuff the area in front of and behind the speaker opening with 6” thick insulation to a depth of approximately 2 feet beginning 1 foot in front and 1 foot behind the speaker opening. If the insulation is foil or paper backed, face the backing away from the ATC-DM speaker. The addition of this insulation will help prevent unwanted transfer of sound into the otherwise large and resonant cavity of the uninsulated ceiling.

Grill Removal for Installation

CAUTION! The grill is held in place by contact pressure around the edges where it attaches to the speaker frame. To avoid difficulty reinstalling the grill, care should be taken

to not distort its shape

 

while removing it.

1/4"(6mm)

While looking at the rear

 

of the speaker assembly,

 

rotate two of the adjacent

 

mounting clamps outward

 

and then evenly press them

 

towards the grill. The clamp

 

screws contact the inner

 

surface of the grill, pushing

 

it gently out of its mounting

 

groove (Figure 3). Only lift

 

the grill 1/4" (6mm) at this

 

location. Next use the other

 

mounting clamps to further

 

loosen the grill. Use care to

Figure 3

not distort the grill shape.

Connecting the Speaker

It is now time to connect the speaker wire to the speaker. Your speaker wire is usually coded to identify each conductor as either positive or negative. This can be by color coding, or one conductor may have a printed marking or at least a rib along one edge that you will not find on the other. Identify which type of polarity coding that your wire is using. You must carefully observe that the positive terminal of the speaker output on your amplifier is connected to the positive terminal of the ATC-DM speaker. Likewise, the negative terminal of the amplifier’s speaker output should be connected to the negative terminal of the ATC-DM speaker (Figure 4).

(+) Amp

(R)

 

(-) Amp

 

 

 

Right and Left

 

 

Channels are

 

 

Both Connected

(-) Amp

 

(Summed

(+) Amp (L)

Mono Speaker)

(+) Amp (R or L) (-) Amp

Only Right or Left

Channel is Connected (Conventional Speaker)

Figure 4

Caution! If the ATC-DM is set to 8with two amplifier channels connected, amplifier damage will occur.

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