AudioSource AC515W User Manual

AC515W

MTM In-Wall Cinema Speaker

Congratulations on your purchase of the
AudioSource AC515W MTM In-Wall Cinema Speaker.
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 AC515W
speaker.

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 Bubble or Laser Level

6) A Tape Measure

7) A Stud Finder (recommended)

8) Your AC515W Speaker

Placement

16" Wall Stud

Figure 1

Spacing

Existing Construction

In most modern buildings the wall studs are positioned
on 16” centers, providing a space between the studs of
approximately 14-3/8”. The AC515W requires a hole size
of 13-15/16” x 6-7/8” (354x175mm). Additionally, you
should allow an extra
AC515W behind the wall surface to allow room for the
screw clamps that mount the speaker to the wall to
swing into position.

Use a stud finder to locate the vertical studs behind
the wall surface. Also, you should now check for
obstructions like cross bracing above and below the
desired speaker location.

3/4” along the long sides of the

11’

Plan your speaker placement carefully. Make certain
that electrical, plumbing and any other services will not
interfere within the walls where you plan to install your
speakers. The AC515W speaker can be mounted in
ceilings, but is typically used in walls in a stereo pair,
singly as a center channel, or in Left/Center/Right
configuration (See Figure 1). The speakers should
be located so that they provide even coverage at your
listening position. The distance between the speakers
should not be greater than the distance from the
speakers to the listening position (See Figure 2).
If the room’s dimensions or furniture placement prevent
adhering to this requirement, the tweeters in the
AC515W speakers can be swiveled to aim them at the
desired listening position. Speaker height should be
maintained at ear level or just above. Again, the
tweeters may be aimed into the listening area.

New Construction

If you are installing your speakers in new construction
before the finished walls go up, AudioSource offers
New Construction Brackets, which provide a stable
frame that can be fastened to the wall studs on 16”
or 24” centers. This allows the sheet rock or other
wall covering to be installed and provides a template
to cut the opening for the AC515W speaker.

12.5’

20’

16’

Figure 2

After selecting the mounting location, mark the hole to
be cut out. A template is provided in the speaker box.
Locate and level the template, then mark with pencil on
the wall surface. If you are unsure whether there are
obstructions behind the wall 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 3), cut a square hole that
you can use to find any obstructions, should they exist.

ROOM

Figure 3

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 wall surface. Cover the
raw edges of the wallboard with masking tape (See
Figure 4). This will prevent the back pressure of the
speaker from blowing loose gypsum dust out and onto
the painted wall 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 Ta pe

ROOM

Figure 4

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 Speakers

Installation Tip! To further enhance the performance
of your AC515W speaker, the wall cavity where you
plan to place your speaker can be stuffed with a
generous quantity of fiberglass insulation. Stuff the area
above and under the speaker opening with 6” thick
insulation to a depth of approximately 2 feet beginning
1 foot above and 1 foot below the speaker opening. If
the insulation is foil or paper backed, face the backing
away from the AC515W speaker. The addition of this
insulation will help prevent unwanted transfer of sound
into the otherwise large and resonant cavity of the
uninsulated wall.

The clamp screws contact the inner surface of the grill,
pushing it gently out of its mounting groove (Figure 5).
Only lift the grill 1/4" (6mm) at this location. Next use the
other mounting clamps to further loosen the grill. Use
care to not distort the grill shape.

1/4"(6mm)

Figure 5

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

AC515W speaker. Likewise, the negative terminal of the

amplifier’s speaker output should be connected to the
negative terminal of the AC515W speaker (Figure 6).

(+) Amp Output

+

(-) Amp Output

-

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.

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.

2

Figure 6