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Definitive Technology DEF-BP6B

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Floor-standing Bipolar Loudspeaker

UPC: 93207010958
MSRP: $0.00
MAP: $0.00



  • Audiophile Performance Designer Styling and Unmatched Value
  • Sonic Superiority of Definitive's Bipolar Loudspeakers
  • Monocoque Non-Resonant Low-Diffraction Cabinets
  • High-Definition Drivers
  • Moving Coil Pure Aluminum Dome Tweeters
  • Phase-Coherent Linkwitz-Riley Crossover Networks
  • Easily Positioned for Superior Sound Throughout any Room for Every Listener

Definitive Technology's BP8B is a revolutionary audiophile-engineered designer-styled loudspeaker intended for musical reproduction and home theater systems of the highest quality. This full-range bipolar (front and rear) radiating system combines lush, spacious soundstaging, life-like depth-of-field razor-sharp resolution, and pinpoint imaging found in the finest dipolar panel loudspeakers, along with the extended bass response high-efficiency wide dynamic range and easy-to-position convenience of the best conventional box systems.


The goal of the Definitive design team was to create state-of-the-art loudspeakers which offered unsurpassed sophisticated technology and lifelike musical and cinematic reproduction, combined in sleek and stylish designs which could be easily and attractively placed in any home. Their success in achieving these goals is immediately apparent when listening to music or experiencing a movie through Definitive speakers. The elegant slender towers seem to disappear in a huge natural soundstage which extends in a three-dimensional arc beyond the speakers from left to right. This three-dimensional arc also exhibits front to back depth which can be awe-inspiring in its ability to recreate the illusion of live music or cinematic action being performed in any room.


The efforts from thousands of man-hours dedicated to critical listening, the design processes utilizing the most advanced computer loudspeaker development programs available, and the fundamental research at the NRC (the world's most advanced loudspeaker research facility) has resulted in the production of loudspeakers like none other in the world. The spectacular three-dimensional imaging deep bass response and the silky smooth high definition linearity of the Definitive Technology BP6B are the result of technological advancements and breakthroughs, including the latest state-of-the-art components and technology developed for Definitive's flagship BP7000 Series loudspeakers. These efforts have been combined to create unmatched instruments for the reproduction of music or movies in any home, truly recreating reality that can suspend disbelief.


Many experts and listeners agree that bipolar speakers are absolutely superior for both music and home theaters. Each speaker incorporates two complete sets of drivers, one facing forward and the other facing to the rear. Thus Definitive’s speakers radiate the full sonic spectrum, both forward and rearward in an omni-directional pattern exactly as sound is produced in real life. This unique technology provides a life-like balance of early-arrival sound information, which provides focus clarity, location data and properly delayed late-arrival information, all of which conveys the lush three-dimensional soundstage of a live music or cinematic performance. This combination creates a rich, warm and ultra-clear soundfield, which feels vibrantly alive. Bipolar technology assures a superb panorama of lifelike sound for every listener wherever they are in the room. Most importantly however, Definitive's bipolar speakers make the walls of any room seem to disappear and feels as if the size of the room is expanding into the sound space.

Additionally, the resonant vibration of a loudspeaker's cabinet walls and baffles can also impart unwanted coloration. Definitive’s monocoque cabinets are constructed of high-density medite with 1" thick front and rear baffles foam dampening-pads and internal braces. This virtually eliminates resonant cabinet coloration which could otherwise interfere with the pure sound produced by Definitive’s high definition drivers. The BP6B also includes an additional divider/brace panel separating the front and rear drivers. The cabinet of a loudspeaker plays a large part in its sonic performance. Diffraction or the secondary radiation of sound caused by cabinet edges grille frames and other protrusions can color the sound of a loudspeaker. This design of the BP6B reduces diffraction to an absolute minimum by flush mounting drivers on extremely narrow baffles with radial edges covered by a frameless grille "sock."

The BP6B utilizes two high definition bass/midrange drivers 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 polymer cones combined with butyl rubber surrounds and dustcaps high temperature vented voice coils and massive magnet structures. This combination of features assures high definition, superb transient response, high efficiency, high power handling and extended bass response. In addition, they are assembled utilizing an aerodynamically designed basket to minimize internal reflections off the back of the cone and preserve magnetic integrity under all conditions.

The moving coil dome tweeters Definitive developed for the BP7000 Series are also used in the BP6B. They utilize a specially annealed pure aluminum 1-inch dome suspended by a silk surround and acoustically loaded by a precisely configured phase plug/lens, engineered to assure perfectly controlled absolutely linear movement. This results in velvety smooth extended response (beyond 30KHz) greatly reduced distortion, improved transient response, wider dispersion and notably higher definition. Magnetic fluid damping is incorporated for ultra-high power handling.

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 design used in the BP6B equalizes 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 any home.

BP6Bs are engineered to be easy to position (just 4" to 24" out from the wall) in any listening room or home theater installation in order to achieve superb sonic reproduction throughout the room. A major benefit of the special driver topology is wide dispersion which assures a superb panorama of lifelike sound for every listener in the room.



  • Tweeter: 
    • Quantity: 2
    • Diameter: 1" (2.54cm)
    • Type: Pure Aluminum Dome
  • Mid / Woofer: 
    • Quantity: 2
    • Diameter: 5 1/4" (13.34cm)
    • Type: High Definition Bass/Midrange Driver
  • Tweeter/Mid Array
    • Type: Bipolar Configuration
  • Audio Inputs
    • Speaker Level: 1 Pair (Speaker Cable)
  • Maximum Sensitivity
    • 1 watt @ 1 Meter: 91 dB
  • Total Frequency Response: 25Hz-30KHz (Overall)
  • Nominal Impedance: Compatible with 8ohm
  • A/V Receiver Crossover Setting Small (50Hz)
  • Power Handling: 20-175 watts per channel
  • Dimensions (HxWxD): 35" x 7" x 11" (88.90cm x 17.78cm x 27.94cm)

Additional Information

Brand Definitive Technology
Shipping Weight 36.80
Type Floorstanding
Features N/A
Speaker Type Standard
Cabinet Finish N/A