Definitive Technology BP 9040 – Big sound from a slim powered tower 
Lots of speakers can fire sound at you, but very few can project sound all around you, as well as Definitive Technology’s high-performance, Definitive Technology BP 9040 bipolar floor-standing speaker. It uses a special driver configuration with both front- and rear-firing speaker arrays to surround you with rich, lifelike sound. This tower also adds a built-in powered subwoofer to the bottom of the cabinet for intense bass. Even in large rooms, every listener will experience a huge, three-dimensional soundstage with both music and movies. Plus, this speaker’s sleek, modern look and cloth grille-wrapped enclosure make it a welcome addition to just about any space.

Bipolar speaker technology immerses you in detailed sound
sound waves
Front and rear speaker arrays work together to create enveloping sound.

Here’s how it works: direct sound from the front two midrange drivers and tweeter arrives at your ears first, to provide clear, focused imaging. That’s followed by sound from the rear mid driver and tweeter to enhance spaciousness. The combination creates a lush, seamless soundstage that’s more like the way we hear sounds in real life. And thanks to Definitive’s Balanced Double Surround System (BDSS) drivers, your music and surround effects will sound clear and accurate, allowing you to pinpoint the soloist in a band or the direction of a jaguar’s call in the jungle.

Powerful bass built right in
At the base of the speaker is an 8″ side-firing subwoofer coupled to two 8″ passive radiators. This trio creates the total radiating surface of a much larger woofer, but with better bass control, speed, and detail than a single huge driver. A built-in 300-watt amplifier powers the subwoofer, delivering deep, hard-hitting bass that eliminates the need for an external sub. And because a subwoofer is built into the cabinet, bass output is already perfectly blended with the mids and the highs. All you have to do is set the bass volume to match your room and taste, then sit back and enjoy your music and movie soundtracks.

Dolby Atmos® ready
If you’re looking for an easy way to seamlessly integrate Dolby Atmos surround sound into your home theater, the Definitive Technology BP 9040 is ready to go. Underneath this tower’s handsome, removable aluminum top plate is a built-in docking port made exclusively for Definitive’s optional A90 Atmos enabled speaker module.

Simply remove the plate, attach the A90 module to the port, and you’re ready for an intense home theater experience. The hidden integrated connector port terminates at the base of the tower with a pair of binding post speaker terminals for connection to your Dolby Atmos compatible receiver’s “Height” or “Top” outputs.

Don’t have a Dolby Atmos capable receiver? Check out our selection.

Build a complete Definitive Bipolar home theater system using perfectly matched centers (see the CS-9040, CS-9060, and CS-9080) and bipolar surrounds (see the SR-9040 and SR-9080).

Did you know?
Your new speakers will probably sound better after several weeks of use than they do right out of the box. That’s because the material surrounding the woofers will loosen up, allowing the drivers to move more fully. Definitive Technology estimates a break-in period of 24 to 48 hours of playback before the speakers will deliver optimum sound quality. For more information and helpful tips, check out this article from Definitive’s website about conditioning your speakers.

Definitive Technology BP Series

• Definitive Technology BP-9020 (Pair)
• Definitive Technology BP-9060 (Pair)
• Definitive Technology BP-9080X (Pair)

Definitive Technology BP 9040 Highlights:

Forward Focused Bipolar Array™ technology for lifelike imaging and greater speaker placement flexibility
built-in powered subwoofer with volume control
Intelligent Bass Control provides precise bass level adjustments while maintaining accurate midrange tonal balance
Dolby Atmos® and DTS:X™ ready with optional Definitive Technology A90 add-on speaker module (sold separately)
built-in docking port with speaker connector plug for A90 module under removable aluminum top plate
Balanced Dual Surround System (BDSS) driver technology places rubber surrounds on both the outer and inner edges of each speaker cone for improved control and clarity
front speaker array: dual 4-1/2″ BDSS midrange drivers and 1″ annealed aluminum dome tweeter with silk surround for smooth, extended highs
rear speaker array: one 4-1/2″ BDSS midrange and 1″ annealed aluminum dome tweeter with silk surround
8″ subwoofer with built-in 300-watt Class D amplifier
two 8″ passive bass radiators for enhanced output
bass-reflex (passive radiator) cabinet design
frequency response: 22-40,000 Hz
recommended amplifier power: 50-300 watts
sensitivity: 92 dB
impedance: compatible with 8-ohm outputs
cloth grille-wrapped enclosure with anodized aluminum top plate
cast aluminum base plate with adjustable knurled carpet spikes and floor glides (for placement on hardwood and other hard surface floors)
two sets of 5-way binding posts (one set dedicated for optional A90 Dolby Atmos add-on module)
LFE line-level input (optional) for subwoofer
speaker-level-only connections recommended for optimum performance
LED illuminated front “D” logo (with rear-panel defeat switch)
11″W x 39″H x 13″D (with included base)
warranty: 3 years electronics