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Owner's of the Definitive Technology Computer Keyboard DEFINITIVE'S REVOLUTIONARY BIPOLAR gave it a score of 0 out of 5. Here's how the scores stacked up:
n 1972, Sandy Gross
and two classmates
from Johns Hopkins
University formed what
was to become one of
the world’s most
successful loudspeaker
manufacturers.
In 1988, Sandy left to
pursue his ultimate dream
and create truly
world-class loudspeakers
dramatically superior in
design, technology, sonic
performance, construction
quality and value to
everything which had
come before.
Voted #1 for quality and
reliability by top industry
professionals in a nation-
wide dealer survey,
Definitive Technology
loudspeakers are the suc-
cessful realization
of this dream.
“In a word, the performance
is stunning. These speak-
ers have a huge advan-
tage for home cinema.”
— Home Cinema Choice
Multiple High Definition Cast-Magnesium Basket Drivers
The BP 8B, 10B and 30 all utilize multiple high definition cast basket bass/midrange
drivers (the same as used in our flagship BP 2000 Series) for significant performance
advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range.
These sophisticated bass/midrange drivers incorporate deeply drawn mineral-filled
homopolymer cones, combined with butyl rubber surrounds and dustcaps, high tempera-
ture vented voice coils and massive magnet structures. This combination of features assures
high definition, superb transient response, high efficiency, high power handling and extend-
ed bass response. In addition, they are assembled utilizing an aerodynamically designed,
magnetically inert, cast-magnesium basket to minimize internal reflections off the back of
the cone and preserve structural and magnetic integrity under all conditions. The BP 6B
uses otherwise identical stamped basket versions of the BP 8B’s cast basket drivers.
Moving Coil Pure Aluminum Dome Tweeters
The moving coil dome tweeters Definitive developed for the BP2000 Series are now
incorporated in the BP 6B, 8B, 10B and 30. They utilize a specially annealed pure alu-
minum 25 mm dome,
suspended by a silk surround and acoustically loaded by a pre-
cisely configured phase
plug/lens, engineered to assure perfectly controlled, absolutely
linear movement. This results in velvety smooth extended response (beyond 30 kHz),
greatly reduced distortion, improved transient response, wider dispersion and notably
higher definition. Magnetic fluid damping is incorporated for ultra high power handling.
Phase Coherent Linkwitz-Riley Crossover Networks
The crossover network of a loudspeaker is the real heart of the system, as it is responsible
for perfectly blending together the sound of the various drivers into a musically seamless
whole. The sophisticated Linkwitz-Riley designs used in the BP 6B, 8B, 10B and 30
equalize the drivers for linear phase and frequency response. This preserves the phase
coherence, transient response and dynamic integrity of the signal for absolutely lifelike
music and home theater reproduction in your home.
Easily Positioned for Superb Sound Throughout Your Room
BP 6Bs, 8Bs, 10Bs and 30s are engineered to be easy to position (just 5" to 24" out
from the wall) in any listening room or home theater installation in order to achieve
superb sonic reproduction throughout your room. In addition, a major benefit of the
special driver topology is wide dispersion, which assures a superb panorama of life-
like sound for virtually every listener in a room, no matter where they sit or stand.
There’s a Superb Definitive Bipolar Tower Perfect for You
The BP 6B: Leading experts agree that Definitive’s revolutionary bipolar loudspeak-
ers are sonically superior to any conventional speaker regardless of size or price. Our
least expensive tower, the astonishing BP 6B, brings all the dramatic benefits and
sonic superiority of full-range bipolar technology to a new level of affordability.
The BP 8B: The BP 8B is an extraordinary full-range bipolar loudspeaker which
offers award-winning sonic performance superior to competitors’ systems selling for
twice its price and more. The BP 8B’s taller cabinet and cast basket drivers deliver
even more extended bass response than the BP 6B. Its exquisite, jewel-like piano-
gloss black or natural oak finish complements the finest home furnishings, and its
sleek, ultra-compact design takes up only 1/2 sq. ft. of floor space.
The BP 10B: Considered one of the world’s finest loudspeakers, the BP 10B, in the
words of The Inner Ear Report, is “almost too good to be true!” Its combination of
full-range bipolar technology, computer synthesized transmission line tuning (for sub-
woofer-quality bass), monocoque low-diffraction cabinet and Definitive’s high defini-
tion drivers (two 17 cm cast-magnesium basket bass/midrange drivers and two 25 mm
pure aluminum dome tweeters) results in a true state-of-the-art speaker of unsurpassed
quality and value. It utilizes larger drivers than the BP 8B for even fuller, more
extended bass response, higher power handling and greater dynamic range.
The BP 30: Definitive’s BP 30 utilizes all the technology incorporated in the BP
10B and combines it with virtual point source coincidentally radiating, symmetrical-
ly concentric driver arrays. Each BP 30 incorporates four 17 cm bass/midrange
drivers which are arrayed on the front and rear baffles in two concentric pairs, each
surrounding a pure aluminum dome tweeter. Each pair of bass/midrange drivers
creates a virtual point source radiating from a position midway between them,
which is coincident with the tweeter location. This symmetrically concentric (or
D’Appolito) point source mounting results in further improvements in the areas of
driver blending, depth retrieval, lateral imaging and dispersion. Additionally, the
use of four bass/midrange drivers extends the bass response below 20 Hz (superior
to most subwoofers) with power handling capability exceeding 500 watts. The BP
30 incorporates provisions for bi-amping or bi-wiring.
I
Important Ultra-Performance Note: In addition to their use as left and right front main speakers, all Definitive bipolar
towers also make superb rear/side speakers for the finest and most advanced home theater systems.
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