Definitive Technology SR-9040
Bipolar surround speaker
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Crutchfield at CES: Definitive Technology BP9000 series speakers
From Definitive Technology: BP 9000 Series
Our take on the Definitive Technology SR-9040 by Crutchfield's Dave Bar
The SR-9040's right- and left-facing driver arrays provide a more immersive surround sound experience.
Bipolar design for dramatic wraparound sound
Definitive Technology's SR-9040 surround speakers will instantly immerse you in every high-speed car chase, high-impact explosion, and bruising brawl that Hollywood blockbuster movies can deliver. Using left- and right-firing driver arrays that radiate full-range sound in an omni-directional pattern, the SR-9040s provide an enveloping listening experience that goes beyond ordinary surround speakers.
High-tech drivers for exceptionally detailed sound
Each driver array in the SR-9040 has a 3-1/2" midrange paired with a 1" dome tweeter, for perfectly blended highs and mids. This bipolar design creates a big, immersive soundfield. Each aluminum dome tweeter is heat-treated to relax the crystal structure of the metal, then attached to a silk surround to help produce smooth, sparkling highs that reveal delicate, low-level ambient details in soundtracks. And thanks to Definitive's Balanced Double Surround System (BDSS) driver design, your movie special effects and multichannel music will sound clear and detailed. These mid/woofers disperse the sound over a wide area in your room so that even viewers sitting off-axis hear engaging surround sound.
Versatile placement options
Definitive's bipolar surrounds aren't fussy about placement — they shine in a variety of room sizes and shapes. A pair of SR-9040s works well on your side walls for 5-channel systems, or on the side and rear walls for a 7-channel system. Each speaker has a keyhole slot for on-wall installations. You can also place this speaker on a shelf or stand and get great results.
Build a complete Definitive home theater system using perfectly matched bipole towers (see the BP-9020, BP-9040, BP-9060, and BP-9080X) and center channel speakers (see the CS-9040, CS-9060, and CS-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.
- bipolar speaker design with wide sound dispersion for enveloping surround effects
- 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
- left and right speaker arrays each include a: 3-1/2" BDSS mid/woofer and a 1" annealed aluminum dome tweeter with silk surround
- frequency response: 50-40,000 Hz
- sensitivity: 92 dB
- impedance: compatible with 8-ohm outputs
- recommended amplifier power: 25-150 watts
- one set of 5-way binding posts
- keyhole slot for wall mounting
- high-gloss black finish on top and bottom caps with cloth grille-wrapped enclosure
- 7-7/8"W x 9-1/2"H x 5-3/8"D
- warranty: 5 years
- Our 60-day money-back guarantee
What's in the Box:
- Bipolar surround loudspeaker
- 2 Grilles (installed)
- Owner's Manual
Sounds and looks great. Nice defused sound for surround speakers.
Aaron, Advance, NC
Features and Specs
|Bipole or Dipole||Bipole|
|Midrange size (inches)||N/A|
|Woofer size (inches)||---|
|Connector Type||5-way post|
|Frequency Response||50-40k Hz|
|Height (inches)||9 9/16|
|Width (inches)||7 7/8|
|Depth (inches)||5 3/8|
|Mounting Bracket Included||Keyhole|
|Parts Warranty||5 Years|
|Labor Warranty||5 Years|
Surround Speaker: The Definitive Technology SR9040's bipolar speaker dispersion pattern provides enveloping surround sound, tremendous dynamic range as well as true high-definition sound quality, which results in total soundfield immersion. This compact, high-quality bipolar speaker is intended primarily for use as a surround or surround back speaker. In addition, it can also be used as front "effects" speakers in multichannel DSP systems.
Bipolar Design: The Definitive Technology SR9040 is a bipolar surround speaker, containing two full-range woofer and tweeter arrays. The speaker cabinet has three sides, with the driver arrays firing in phase approximately 100° apart to flood the area with sound and the third side mounts against the wall. Dispersing the surround channel's sound evenly over a broad area of the room creates an enveloping home theater experience.
Aluminum Dome Tweeters: The SR9040 bipolar surround speaker features two 1" aluminum dome tweeters for crystal clear highs that bring the most demanding audio soundtracks to life. Definitive Technology tweeters are designed to play higher in frequency than what is heard by the human ear, creating an authentic reproduction of sound as the artist intends in the studio or concert hall.
BDSS (2nd Gen) Drivers: The Definitive Technology SR9040 employs two 3.5" midrange cone woofers with patented Balanced Double Surround System (BDSS) technology (2nd generation). BDSS technology improves driver excursion which results in the selected driver producing bass output usually associated with a larger driver, while retaining the improved dispersion and midrange definition of a smaller driver.
Resonance-Free Cabinet w/ Acoustically Transparent Grilles: The Definitive Technology SR9040 uses a resonance-free cabinet w/ acoustically transparent grilles for high performance, distortion-free sound. The speaker cabinet's maximum rigidity with strategically placed bracing improves imaging while reducing resonance, further reinforcing the speaker's clean and powerful sound. Thanks to the speaker's acoustically transparent grilles, you'll enjoy the subtle elegance of the speaker design without having to remove a speaker grille to enjoy natural, uncolored sound.
Binding Post Terminals: The speaker terminals are 5-way binding posts that will accommodate spade connectors, single or dual banana plugs, pin-connectors, and bare wire up to 10 gauge.
Mounting Options: The SR9040 has a rear-panel keyhole slot for wall-mounting. It can also be simply placed on a shelf or stand.
Placement: For use surround speakers, position the speakers approximately 6' high and directly beside or 1-2" behind the listening area. For use as surround back speakers, position the speakers approximately 6' high and 6' apart directly behind the listening area.
BP9000 Series: The SR9040 is part of Definitive Technology's BP9000 series line-up of speakers. Definitive Technology's BP9000 series loudspeakers is its 4th generation of bipolar tower speakers, matching center channels, surrounds, and a height speaker module, designed to offer true, full-range performance for listeners seeking the highest quality audio reproduction. The BP9000 series of loudspeakers consists of the BP9020, BP9040, BP9060 and BP9080X bipolar tower speakers; the CS9040, CS9060 and CS9080 center-channel speakers; the SR9040 and SR9080 surround speakers; and the A90 elevation speaker module supporting Dolby Atmos.
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