Definitive Technology SR-8040BP 150 W RMS Bipolar Surround Loudspeaker - Each (Black)

Model: SR-8040BP UPC: 093207078392 Item: 155305

Product Information

The SR-8040HD is built to the same high performance standards as Definitive's main left and right front speakers and includes features like high-definition second generation patented BDSS bass/midrange drivers with butyl rubber surrounds, wide-dispersion pure aluminum dome tweeters, complex crossover networks and rock-solid cabinet construction. It can be mounted to a wall with the integrated keyhole plate or it can be placed atop a shelf or after-market stand. However you use the SR-8040BP you'll enjoy superior surround sound realism.

The Bipolar Advantage Definitive's SR-8040HD is a bipolar system containing two complete full-range speaker systems, one on each side of the cabinet. Bipolar radiation spreads the surround signals evenly throughout your room for a more enveloping sense of you-are-there realism than could be achieved with conventional forward-firing speakers.

Bipolar Surrounds are Easy to UseDefinitive's bipolar surrounds are designed for easy and unobtrusive placement in your room. Easy-to-use mounting plates are included for wall mounting. Definitive's BP surround speakers may be located on the sides or rear of the room (or both as in 6.1 and 7.1 channel installations) with excellent results.

Patented Technology Delivers High Definition and Wide Dispersion

The drivers used in the SR-8040BP are 3-1/2" second generation BDSS drivers. BDSS is Definitive's patented Balanced Double Surround System technology that supports the speaker cone at both the inner and outer edges allowing longer, more linear excursion for greater clarity and finely textured inner detail. A new patent pending Linear Response WaveguideTM smoothes off-axis frequency response and disperses sound over a wider area for crystal clear intelligibility and life-like envelopment for every listener in the room. The tweeters are pure aluminum domes, which has been heat-treated to relax the crystal structure and then coated with a ceramic to produce extended highs that reveal nuance and shimmer without a trace of edginess.


  • The perfect surround speaker for BP SuperTower series front speakers
  • Bipolar dispersion pattern (speakers on front left and front right sides) for totally enveloping surround sound that puts you in the action
  • The same highest quality components as Definitive's front channel speakers for seamless channel to channel transition
  • Two 3-1/2 inch die cast basket patented BDSS drivers and two 1 inch pure aluminum dome tweeters
  • Easy wall mount system included


  • Sensitivity: 92 dB
  • Frequency Response: 50 Hz- 30 kHz
  • Nominal Impedance: 8 ohms


  • Height: 9 1/2" (24.13cm)
  • Width: 7 13/16" (19.84cm)
  • Depth: 5 3/8" (13.65cm)


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