Boston Acoustics CR6 Manuel utilisateur
COMPACT REFERENCE SERIES
BOSTON ACOUSTICS
THE COMPACT REFERENCE SERIES
The Compact Reference Series incorporates the highest quality materials, the latest acoustic technology, and new
state-of-the-art molding techniques, and are capable of unusually high performance. These speakers are fully
compatible with home theater systems. Each model features MagnaGuard®magnetic shielding. This ensures the
speaker
‘
s magnetic field will not distort the TV
‘
s image or damage the picture tube, allowing placement next to a
television or computer monitor.
HOW TO CONNECT YOUR SPEAKERS
Correctly wiring your speakers is important for achieving the best sound quality and a rich stereo image. Wiring
should take just a few minutes, but it
‘
s important to do it carefully, since incorrect wiring (such as reversed
connections) can result in a poor stereo soundstage or poor bass.
We recommend 18 gauge wire or thicker for runs up to 25 feet (8 meters) and 16 gauge wire or thicker for longer
runs. Separate the first few inches of the wire conductors. Strip off 1/2-inch (12mm) of insulation from the ends of each
speaker wire to expose the two conductors and tightly twist the wire strands.
Using the five-way
binding posts: The
binding posts permit
easy connection to
banana plugs, spade
lugs, and bare wire.
The metal surfaces are
plated with 24k gold
to prevent corrosion.
CHECKING THE CONNECTIONS
It is critical that your speakers are hooked up with similar polarity or “in phase.”A simple listening test will tell you if
the speakers are connected properly. Place the speakers face-to-face, as close as possible. While listening to music
with your amplifier set to MONO, reverse the connections at one speaker only. You’ll hear a dramatic change in
sound. The connection that yields the fuller bass and louder sound is the correct one.
Warning: To prevent electrical shock hazard, always switch off the amplifier or receiver when making connections to
the speaker.
HOOKUP
When making all connections, be sure to connect + to +
(red) and –to –(black). Connect the speaker terminals to
the amplifier speaker outputs.
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 to the + (red)
connection.
BostonBoston
Back of amplifier or receiver
Insert the wire into the hole and tighten.
WALL MOUNTING YOUR
SPEAKERS
You may wall-mount the CR6 and CR7 with either the keyhole built into the back
panel or the optional CRB bracket.
Using the keyhole–Consult a knowledgeable installer regarding the proper
hardware to use on your wall surface. Make certain there is at least a 1/2- inch
(12mm) gap between the top rear of the speaker cabinet and the wall behind it.
This will ensure the speaker is the proper distance from the wall to maintain
unrestricted air flow from the woofer port.
Using the optional CRB bracket–Wall mounting brackets (model ”CRB”)
are available for the CR6 and CR7. The brackets provide greater mounting
flexibility than the keyhole and will position the speaker the proper distance from
the wall. For more information, contact your dealer or Boston Acoustics directly.
ROOM PLACEMENT FOR BEST RESULTS
Room placement is one of the most important factors in determining sound quality. Taking a few minutes to try different
placements ensures that your speakers will sound best in your listening environment.
For a realistic soundstage, place the speakers 6 to 12 feet (2-4m) apart so they form a triangle with your favorite
listening position, and are near ear level when you are in a seated position. The speakers should be at least 2 feet (.6m)
from the corners of the room. Putting the speakers too close to a corner can produce an unnatural bass reinforcement that
detracts from their balanced, uncolored sound. If a speaker must be placed near a corner, move it away from the wall
behind it to preserve its natural tonal balance.
The CR Series will work well on bookshelves or stands. For best results, avoid placing the speaker’s back flush against
a wall, since this will restrict the air flow from the port and reduce the bass response. Clearance of 1/2-inch (12mm) or more
is sufficient to maintain proper bass response.
Four self-adhesive rubber feet are provided to protect the mounting surface finish and prevent vibration.
LISTENING LEVELS AND POWER HANDLING
The power recommendation for the Compact Reference Series assumes you will operate the amplifier in a way that will not
produce distortion. Even these rugged systems can be damaged by an amplifier if it is producing distortion.
If you hear a harsh, gritty noise, turn the volume down. Prolonged or repeated operation of your speaker with a
distorted signal from the amplifier can cause damage that is not covered by the warranty.
SPECIFICATIONS
CR6 CR7 CR8 CR9
Frequency Response (±3 dB) 65-20,000 Hz 52-20,000 Hz 48-20,000 Hz 42-20,000 Hz
Recommended Amplifier Power 15-100 watts 15-100 watts 15-125 watts 15-150 watts
Nominal Impedance 8 ohms 8 ohms 8 ohms 8 ohms
Sensitivity [1 watt (2.83V) at 1m] 88 dB 88 dB 90 dB 91 dB
Bass Unit 51/4" (135mm) 61/2" (165mm) 7" (180mm) 8" (200mm)
Tweeter 3/4" (19mm) dome 3/4" (19mm) dome 1" (25mm) soft dome 1" (25mm) soft dome
Crossover Frequency 3500 Hz 2800 Hz 3300 Hz 3300 Hz
Dimensions 101/8x 57
/8x 77
/8"12
1/4x 71/2x 91/8" 5 x 81/2x 101/2"9
1/2x 93/4x 113/8"
(257 x 149 x 200mm) (311 x 191 x 232mm) (381 x 216 x 267mm) (495 x 248 x 289mm)
Weight 71/2lbs (3.4kg) 11 lbs (5kg) 16 lbs (7.3kg) 21 lbs (9.5kg)
CR6 CR7 CR8 CR9
Self-adhesive rubber feet prevent
marring of the walls surface
approximately 1/2-inch (12mm)
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
product 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, 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 which vary from state to state.
If Service Seems Necessary
First, contact the retailer from whom you purchased the speakers. If that is
not possible, call us at 978-538-5000, or write to:
Boston Acoustics, Inc., 300 Jubilee Drive, Peabody, MA 01960.
Send us:
1. Your name, address, and daytime telephone number.
2. The speaker system’s serial number.
3. Details on when and where you purchased the speaker(s) and a copy of
your sales slip.
4. Makes/models of your signal sources and amplifier.
5. Description of the problem.
6. Whether you have the original cartons and fillers or need new ones.
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. and Canada.
Boston, Boston Acoustics, and MagnaGuard are registered trademarks of Boston Acoustics, Inc. Specifications are subject to change without notice. ©1994 Boston Acoustics, Inc.
42-531-0
300 Jubilee Drive
Peabody, MA 01960
978.538.5000
Ce manuel convient aux modèles suivants
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