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

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

iﬁ

ﬁc

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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