AudioSource AC8C Manual

AudioSource Højttaler AC8C

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Side 1/4

Congratulations on your purchase of the AudioSource

AC Series 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 AC

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 AC Series speakers

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 AC Series speakers can be mounted in

walls, but are typically used in ceilings. 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 1).

If the room’s dimensions or furniture placement prevent

adhering to this requirement, the tweeters in the AC

Series speakers can be swiveled to aim them at the

desired listening position.

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 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 AC

Series speakers.

AC5C/AC6C/AC8C

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.

5“/6.5”/8” 2-Way Ceiling Speakers

11’

16’

20’

11.5’

Figure 1

Existing Construction

In most modern buildings ceiling joists are positioned

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

approximately 14 ”. The specifications chart shows 3/8

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

should allow an extra ” in all directions behind the 3/4

ceiling surface to allow room for the screw clamps that

mount the speaker to the ceiling to swing into position.

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 2), cut a

square hole that you can use to locate any obstructions,

should they exist.

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 obstruc-

tions, 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

(Figure 3). 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.

Next run your speaker wire to your speaker locations.

A speaker wire is recommended when UL rated CL3

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 AC Series speakers, the ceiling joist cavity where

you plan to place your speakers 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 AC Series speaker. The addition of this

insulation will help prevent unwanted transfer of sound

into the otherwise large and resonant cavity of the un-

ROOM

Figure 3

ROOM

Masking T.ape

Figure 2

insulated ceiling.

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

AC Series speaker. Likewise, the negative terminal of the

amplifier’s speaker output should be connected to the

negative terminal of the AC Series speaker (Figure 5).

(+) Amp

(-) Amp

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. The clamp screws

contact the inner surface of the grill, pushing it gently

out of its mounting groove (Figure 4). 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.

Figure 4

Figure 5

1/4"(6mm)

Produkt Specifikationer

Mærke:	AudioSource
Kategori:	Højttaler
Model:	AC8C
Højde:	92 mm
Produktfarve:	Hvid
Udgangseffekt (RMS):	100 W
Anbefalet brug:	Højttalersæt enhed
Frekvensområde:	38 - 22000 Hz
Impedens:	8 ohm (Ω)
Forbindelsesteknologi:	Ledningsført
Højttaler, type:	2-vejs
Lyd-output kanaler:	2.0 kanaler
Højttaler, placering:	Kan monteres i loftet
Diameter:	273 mm
Diskanthøjttaler:	Ja
Antal drivere til diskant:	1
Sensitivitet:	90 dB
Diskant diameter:	25 mm
Bashøjttaler:	Ja
Antal bashøjttalerdrev:	1
Forstærker:	Ingen
Subwoofer driver diameter (britisk):	8 "
Drivercylinder, materiale:	Polypropylen