Proficient C605 Manual

Proficient Højttaler C605

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Side 1/4

Before installing your LCR Ceiling Series speakers, you

should consider their placement carefully, taking into account

the location of electrical, plumbing and other ﬁxtures. Contact

your Dealer for assistance if you are unsure of the best

location for your particular listening environment.

Placement In Ceiling: When placing your speakers into the

ceiling, they should be located so that the ﬁxed 15˚ angle

woofer is pointed towards the primary listening area.

If the speakers are positioned far away from the primary

listening area, simply adjust the pivoting tweeters so they are

pointed towards it.

Note: To avoid possible damage to the pivoting tweeters, read

the section entitled “SPEAKER ADJUSTMENTS” in this manual

prior to performing the tweeter adjustment.

In a very large room with low ceilings, it may be necessary to

place additional speakers throughout the room. Contact your

Proﬁcient Audio Systems Dealer for assistance.

New Construction - Unﬁnished Ceilings

A Pre-Construction Bracket, available from your Dealer, may

be installed prior to drywall application across joists (up to 24"

on-center) where a speaker will be located. After the hole is

cut and the drywall is installed, the speakers are then easily

installed following the instructions for mounting in “Finished

Ceilings” below. If the speakers are to be mounted more Note:

than 24" on-center, a special “Extra Long Wing” is available

from your Dealer.

Finished Ceilings

Prior to the actual installation of the speakers, it will be neces-

sary to run cables to the speaker locations. See your Dealer

for more information about cable installation. After the cable

has been properly installed, you are ready to mount the

speakers. Following the simple steps listed below will result in

a professional looking installation:

1. Determine the best area to mount your speakers. This area

of the ceiling should be free of obstructions such as electri-

cal conduit, HVAC ducts, or water lines. This can best be

determined by noting the placement of ﬁxtures and gaining

access to an attic or crawl space for further analysis of the

location of such obstacles.

2. Find the joists nearest the desired speaker mounting loca-

tion. We highly recommend using a good stud-ﬁnder tool

for this procedure. If you are lining up the speakers to some

other object or molding in the room, make sure you con-

sider the size of the bafﬂe ﬂange which extends beyond the

mounting hole.

3. Mark the hole. A template for setting the hole is provided

in the box (along with two paint mask inserts for use when

painting). Position the template in the desired position and

pencil an outline on the ceiling.

4. Cutting the hole. CAUTION: This is the most important

part of the entire installation. If you are not certain

whether any obstructions exist behind the desired mounting

area, you should start by cutting a small hole in the center

of your penciled mounting hole with a drywall saw, cutting

at a 45° angle towards the inside of the hole. (See Diagram 1)

Cutting the small hole at this angle will make drywall repair

much easier, using the piece cut out. Once you have deter-

mined that there aren’t any obstructions in your desired

mounting location, start cutting the ﬁnished hole at a 90°

angle to the ceiling surface.

5. Add insulation. If the area in the ceiling is not already insu-

lated, add an adequate amount insulation material to loosely

cover the back of the speaker. If the insulation material used

is faced with foil or paper, position the foil or paper away

from the speaker.

SPEAKER PLACEMENT

MOUNTING SURFACE PREPARATION

Diagram 1:

Ceiling Cut Out

OWNER’S MANUAL

LCR CEILING SERIES

C870 • C660 • C650

The LCR Ceiling Series speakers come from the factory with

the tweeter facing straight out from the bafﬂe. This will result

in the overall smoothest response. However, depending on

your particular primary listening area, room acoustics, ceiling

height, or personal preference, you may ﬁnd the sound more

pleasing by pointing the tweeters in a particular direction. If

additional treble is desired in the primary listening area, point

the tweeter towards that area; and if less treble is required,

point the tweeter away. Push gently at the edge of the tweeter

to point it in the desired direction. (See Diagram 3)

CAUTION:

Avoid touching metal dome tweeters, as damage may

occur (C870 & C660).

The unique integral four-foot mounting system incorporated

into each LCR Ceiling Series speaker allows for a quick

installation by following these easy steps:

1. Remove the grille. It may be necessary to push one or two

of the mounting screws and its attached foot towards the

bafﬂe and against the inside surface of the grille to force

the grille out of its retaining groove.

2. Attach the speaker cable (observing the proper polarity

with your ampliﬁer, + to + and – to –). Make sure the left

channel of the ampliﬁer is connected to the left speaker,

the right channel is connected to the right speaker, etc.

3. Make sure the mounting feet are turned inward to clear the

opening, and insert the speaker into the ceiling. Position

the speaker into the hole.

Note: The ﬂange of the speaker is designed to ﬂex and

conform to any small imperfections in the ceiling’s sur-

face. Tighten the four screws on the front of the bafﬂe only

enough to make the ﬂange become snug against the ceiling.

As you tighten the screws, the feet will automatically ﬂip into

an outward position (See Diagram 2), thereby clamping the

drywall between the feet and the ﬂange. CAUTION: Over-

tightening may warp the bafﬂe, crack the ceiling, cause

the ﬂange to distort, and make the grille difﬁcult to

install.

4. Push the grille ﬁrmly into the slot in the speaker bafﬂe.

SPEAKER ADJUSTMENTS

SPEAKER INSTALLATION

Push Tweeter Here

Diagram 3:

Tweeter

Diagram 2:

Mounting Feet

Tweeter Adjustment :(C870 Only)

The switch labeled TREBLE allows for ±3dB of treble adjust-

ment. Your speakers were shipped with the treble switch in the

middle position, providing the most linear frequency response.

If you desire more treble, move the switch to the “+” position,

and the tweeter will play 3dB higher. If you desire less treble,

move the switch to the “–” position, and the tweeter will play

3dB lower. To return to the neutral setting, push the switch

back to the middle position. (See Diagram 4)

Woofer Adjustment (C870 Only):

The switch labeled BASS allows for ±3dB of bass adjustment.

Your speakers were shipped with the bass set to the middle

position. This setting provides the ﬂattest bass frequency

response. If you desire more bass, push the switch to the “+”

position and the bass will play 3dB higher. If you desire less

bass, push the switch to the “–” position and the bass will play

3dB lower. This setting provides a more linear bass frequency

response. To return to the neutral setting, push the switch back

to the middle position. (See Diagram 4)

Bass Adjustment Switch

Treble Adjustment Switch

Diagram 4:

Adjustment Switches

Produkt Specifikationer

Mærke:	Proficient
Kategori:	Højttaler
Model:	C605

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