Definitive Technology BP 8B Bedienungsanleitung
Please Inspect For Shipping Damage
Each loudspeaker leaves our plant in perfect condition. Any
visible or concealed damage most likely occurred in handling
after it left our plant and should be reported at once to your
Definitive dealer or the shipping company which delivered
your loudspeaker.
Congratulations
Congratulations on your purchase of the
Definitive Technology BP 8B Bipolar
Loudspeaker System. This revolutionary
loudspeaker utilizes state-of-the-art
components (cast basket homopolymer-
coned bass/midrange drivers, moving coil
ferrofluid-cooled pure aluminum dome
high frequency radiators, uniphase
crossover networks, etc.), a non-resonant
monocoque cabinet and unique bipolar
(front and rear) radiation in order to
achieve the most lifelike sound possible
in your listening room for many years
to come.
BP 8B
Bipolar Loudspeaker
Owner's Manual
It is critical for proper performance that both speakers (left and right) be connect-
ed in proper phase. Note that one terminal on each speaker (the +) is colored red and
the other (the -) is colored black. Please make certain that you connect the red (+)
terminal on each speaker to the red (+) terminal of its channel on your amplifier or
receiver, and the black (-) terminal to the black (-) terminal. It is essential that both
speakers be connected in the same way to the amplifier (in phase). If you experience
agreat lack of bass, it is likely that one speaker is out of phase with the other.
Your BP 8Bs should sound good right out of the box; however, an extended
break-in period of 20-40 hours or more of fairly loud playing is required to reach
full performance capability. Break-in allows the suspensions to work in and results
in fuller bass, a more open “blossoming” midrange and smoother high frequency
reproduction.
Connecting Your Loudspeakers
“Spiking” Your Loudspeakers
Speaker Break-In
Usually if distortion is heard when the speakers are being driven at loud
levels, it is caused by driving (turning up) the amplifier too loud and not
driving the speakers with more power than they can handle. Remember,
most amplifiers put out their full rated power well before the volume con-
trol is turned all the way up! If your speakers distort when you play them
loud, turn down the amplifier or get a bigger one.
An optional “spiking” kit has been provided should you desire to “spike” your
loudspeakers. “Spiking” your loudspeakers will provide greater stability when plac-
ing your loudspeakers on carpeting and will also, according to many experts, result
in an overall improvement in sonic performance. Care should be taken when using
spikes as they may cause damage to wooden or other floors which are susceptible to
being scratched. Definitive Technology is specifically not responsible for damage
which may result from the use of spikes.
The spike kit contains 4 spikes. To install,unscrew the plastic guides on the bot-
toms of the speakers. Then screw the 4 spikes into the T nuts. Then (preferably with
the help of another person) lift the speaker upright and lower it down to its exact
desired position on the floor. You must lower the speaker to the exact position you
want because once the spikes are in place you cannot move the speakers sideways
on the rug or floor – this may damage the floor or the speakers. Next, adjust the
spikes so the speaker sits solidly (and does not rock).
Please note that you can adjust the feet or spikes to tilt the speakers back (front
to back approximately 1/2” to 1” highter than rear) for even better sound.
It is important, because of the BP 8B’s unique bipolar (front and rear) radiation
pattern, that some simple set-up recommendations be followed in order to assure
optimum performance in your room. Please remember that although these recom-
mendations are usually valid, all rooms and listening set-ups are somewhat unique,
so do not be afraid to experiment with the speakers. Remember, whatever sounds
best to you is correct.
In most rooms the speakers should be placed 6 to 12 inches from the rear wall in
order to allow the rear radiated sound to freely reflect off the back wall. Placement
closer to the rear wall will increase the bass output while placement further from the
rear wall will decrease the bass output.
The speakers should usually be placed 6 to 8 feet apart and kept away from the
side walls and corners. A good rule of thumb is to place the speakers separated by
one half the length of the wall they are positioned along, and each speaker one quar-
ter the length of the back wall away from the side wall.
Speakers may be angled in towards the listening position or left parallel with the
rear wall. Generally, we recommend angling the speakers in which will result in a
somewhat brighter, clearer, more detailed sound with a more focused central image.
Leaving the speakers parallel with the wall will result in a less bright, more diffuse
sound. Try to leave the space on the sides of the speakers as open and as unobstruct-
ed as possible so that there will be no interference with the rear radiated sound.
The BP 8B can also be used as an exceptional rear or side surround effects speaker
in home theater installations. When used as a side speaker, locate the BP 8B behind
and to the sides of the listeners. When used as a rear speaker, the BP 8Bs can be
located 6-12" from the rear wall and pointed towards the listeners, or placed sideways
on the rear wall with the drivers facing at each other and towards the side walls.
It is our pleasure to offer assistance if you have any questions regarding your
BP 8Bs or their set-up. Please contact your nearest Definitive Technology dealer or
contact us directly at 410-363-7148.
Positioning the BP 8Bs in Your Room
Technical Assistance
Service
Visit us at www.definitivetech.com
Service and warranty work on your Definitive loudspeakers will normally be per-
formed by your local Definitive Technology dealer. If, however, you wish to return
the speaker to us, please contact us first, describing the problem and requesting
authorization as well as the locations of the nearest factory service center. Please
note that the address given in this booklet is the address of our offices
only.Under no circumstances should loudspeakers be shipped to our
offices or returned without contacting us first and obtaining return
authorization.
Definitive Technology Offices
11433 Cronridge Drive, Owings Mills, Maryland 21117
phone: 410-363-7148
B
BP
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8B
BS
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Dimensions
Frequency Response
Efficiency
Nominal Impedance
Driver Complement
Recommended
Associated Amplification
Weight
7"W x 11"D x 38"H
22 Hz – 30 kHz
91 dB
Compatible with 8 ohm outputs
Two 14 cm cast-basket polypropylene coned bass-
midrange drivers (with butyl rubber surrounds and dust
caps) and two 25 mm pure aluminum dome tweeters
blended by a Linkwitz-Riley crossover
20 – 200 watts/channel
50 lbs. each
Definitive Technology warrants to the original retail purchaser only that this Definitive Technology
Loudspeaker Product (the “Product”) will be free from defects in materials and workmanship for a period of
five (5) years covering the drivers and cabinets, and three (3) years for the electronic components from the
date of the original purchase from a Definitive Technology Authorized Dealer. However, this warranty will
automatically terminate prior to the expiration of five (5) years for the drivers and cabinets and three (3)
years for the electronic components if the original retail purchaser sells or otherwise transfers the Product to
any other party. The original retail purchaser shall hereinafter be referred to as “you.”
Defective Products must be shipped, together with proof of date of purchase, prepaid insured to the
Authorized Dealer from whom you purchased the Product, or to the nearest factory service center.
Product(s) must be shipped in the original shipping container or its equivalent; in any case the risk of loss or
damage in transit is to be borne by you. If, upon examination at the Factory or a Definitive Technology
Authorized Dealer, it is determined that the unit was defective in materials or workmanship at any time dur-
ing this Warranty period, Definitive Technology or the Definitive Technology Authorized Dealer will, at its
option, repair or replace this Product at no additional charge, except as set forth below. All replaced parts
and Product(s) become the property of Definitive Technology. Product(s) replaced or repaired under this
Warranty will be returned to you, within a reasonable time, freight collect.
This Warranty does not include service or parts to repair damage caused by accident, misuse, abuse,
negligence, inadequate packing or shipping procedures, commercial use, voltage in excess of the rated
maximum of the unit, cosmetic appearance of cabinetry not directly attributable to defects in materials or
workmanship, or service, or repair or modification of the Product which has not been authorized by
Definitive Technology. Definitive Technology makes no Warranty with respect to its Products purchased
from dealers or outlets other than Definitive Technology Authorized Dealers. This Warranty is in lieu of all
other expressed Warranties. If this Product is defective in material or workmanship as warranted above,
your sole remedy shall be repair or replacement as provided above. In no event will Definitive Technology
be liable to you for any incidental or consequential damages arising out of the use or inability to use the
Product, even if Definitive Technology or a Definitive Technology Authorized Dealer has been advised of
the possibility of such damages, or for any claim by any other party. Some states do not allow the exclusion
or limitation of consequential damages, so the above limitation may not apply to you.
All implied warranties on the Product are limited to the duration of this expressed Warranty. Some
states do not allow limitation on how long an implied Warranty lasts, so the above limitations may not
apply to you. This Warranty gives you specific legal rights, and you also may have other rights which vary
from state to state.
Limited Warranty:
5-Years for Drivers and Cabinets,
3-Years for Electronic Components
This product complies with the essential
requirements of the EMC directive 89/336/EEC.
BP8M012109
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