Boston Acoustics CRC Manuel utilisateur

CRC

Center Channel Speaker

Boston Compact Speakers

volume

crossoverHz crossover polarity

50 150

80 120 set none 0° 180 °

Boston

Placement

Place the center channel speaker above or

below the television monitor, as close as

possible to the center of the screen. It is not

necessary to angle the speaker to face the

listeners. The speaker is magnetically

shielded with MagnaGuard®and will not

affect the television’s picture. Use the four

self-adhesive rubber feet (provided) to

protect the TV’s ﬁnish and reduce vibration.

Speciﬁcations

Frequency Response (±3dB) 80–20,000Hz

Recommended Ampliﬁer Power 15–100 watts

Nominal Impedance 8 ohms

Sensitivity [1 watt (2.83v) at 1m] 89dB

Bass Unit 41⁄2" (115mm) copolymer

Passive Radiator 41⁄2" (115mm) copolymer

Tweeter 1" (25mm) Kortec™

Crossover Frequency 2,500Hz

Dimensions (HxWxD) 151⁄2x 5 x 61⁄2" (394 x 127 x 165mm)

Weight 10 lbs (4.5kg)

Finish Black ash vinyl veneer with charcoal gray grille cloth

Description

Continuing in the tradition of our critically acclaimed Compact Reference series, the second generation CRC is a

compact, versatile, high performance center channel speaker designed to deliver accurate, natural reproduction. Its wide

and even dispersion ensures that the sound will remain consistent and uniform for listeners throughout the room, assuring

that everyone has the “best seat.”

Special care has been taken to optimize the speakers’ components for maximum performance: The bass unit utilizes a

phase plug that conducts heat away from the voice coil, thus increasing power handling and maximizing output. The

woofer cones and surround geometry were designed and optimized with Boston’s Finite Element Analysis (FEA) computer

modeling technology, for strong bass and smooth midrange.

High frequencies are handled by Boston’s exclusive 1-inch (25mm) Kortec tweeter mounted in an innovative new wide

dispersion projection tweeter baffle. This remarkable driver produces an extremely smooth, ﬂat response well beyond the

audible range. An aluminum heatsink attached to the tweeter’s backplate dissipates heat quickly and efficiently, assuring

cool, trouble-free operation – even at very high power levels.

All the drive units are designed at Boston’s Peabody, Massachusetts facility using state-of-the-art computer-design

programs, and are built on Boston’s proprietary production lines to an incredible ±1dB—perhaps the industry’s tightest

tolerance. Within the cabinets are specially tapered braces that lock the front and rear baffles together and provide

strength and rigidity, thus minimizing cabinet resonances.The CRC also features MagnaGuard®magnetic shielding for safe

placement near any sized television set.

Connection

WARNING: To prevent an electrical shock hazard, always switch off the ampliﬁer or receiver when making

connections to the speaker.

We recommend 18-gauge, or thicker, wire for runs up to 25 feet (8m) and 16-gauge, or thicker, wire for longer

runs. Separate the ﬁrst few inches of the wire conductors. Strip off 1⁄2inch (12mm) of insulation from the ends

of each speaker wire to expose the two conductors and tightly twist the wire strands.

IMPORTANT: Typically, one side of the

wire is smooth. Connect this side to the

–(black) connection. The other side has a

rib or stripe. Connect this side to the

+(red) connection.

surround sound receiver/ampliﬁer

left

front center

front right

front

CRC center channel speaker

Setting Up Your Home Theater System

Volume levels: To obtain the best home theater effect, match the sound levels of each speaker. Home

theater systems include a test signal that simpliﬁes this level matching. Refer to the instructions provided

with your surround sound electronics.

Distance adjustment: Digital surround sound electronics permits the listener to adjust the relative timing

of the center channel sound. This adjustment affects the quality of the front image of the system. Refer to

the instructions provided with your surround sound electronics.

Bass management—speaker selection: Surround sound electronics provides adjustments or menus that

permit the listener to direct bass signals to speciﬁc channels for the best effect. Generally, with all surround

systems, the center channel mode should be set to SMALL. This setting will divert low bass to the front left

and right speakers (which typically have greater bass capability than the center speaker) and will result in

the greatest total system bass output. Also, if your system includes separate subwoofers, the SMALL setting

ensures that the subwoofers will receive the most bass under all conditions.

Bass management—crossover frequency selection: Some surround sound electronics provides a choice

of crossover frequencies (the frequency below which bass is diverted to the left, right, or subwoofer

speakers). If a choice is provided, 80Hz will give the best overall results.

Systems with Dolby®Pro Logic®only: On older systems with Dolby Pro Logic only, use the NORMAL or

SMALL settings for the center speaker. The PHANTOM setting, which presumes you do not have a center

channel speaker, should not be used.

Using the ﬁve-way binding

posts: The binding posts permit

easy connection to banana

plugs, spade lugs and bare wire.

Insert the wire in the hole and

tighten.

Connect the speaker to the center front terminals

of your surround sound receiver or ampliﬁer.

IMPORTANT: Be sure to connect +to +(red) and

–to –(black).

Boston, Boston Acoustics, and MagnaGuard are registered

trademarks of Boston Acoustics, Inc. Dolby Pro Logic is a registered

trademark of Dolby Laboratories Licensing Corporation.

Speciﬁcations subject to change without notice.

042-001288-1

Listening Levels and Power-Handling

The power recommendation for the speaker assumes you will operate the ampliﬁer in a way that will

not produce distortion. Even rugged systems like the CRC can be damaged by an ampliﬁer if it is

producing distortion.

If you hear a harsh, gritty noise, turn down the volume. Prolonged or repeated operation of your speaker

with a distorted signal from the ampliﬁer can cause damage that is not covered by the warranty.

Limited Warranty

For ﬁve years from the date of purchase, Boston Acoustics will repair for the original owner any defect in

materials or workmanship that occurs in normal use of the speaker, without charge for parts and labor.

Your responsibilities are to use the system according to the instructions supplied, to provide safe and secure

transportation to an authorized Boston Acoustics service representative, and to present proof of purchase in

the form of your sales slip when requesting service.

Excluded from this warranty is damage that results from abuse, misuse, accidents, shipping, or repairs or

modiﬁcations by anyone other than an authorized Boston Acoustics service representative.

This warranty is void if the serial number has been removed or defaced.

This warranty gives you speciﬁc legal rights, and you may also have other rights that vary from state to state.

If Service Seems Necessary

First, contact the dealer from whom you purchased the speakers. If that is not possible, write to:

Boston Acoustics, Inc. 300 Jubilee Drive Peabody, MA 01960 U.S.A.

We will promptly advise you of what action to take. If it is necessary to return your speaker to the factory,

please ship it prepaid. After it has been repaired, we will return it freight prepaid in the U.S.A. and Canada.

300 Jubilee Drive

Peabody, MA 01960 USA

978-538-5000

www.bostonacoustics.com

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