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Bowers and Wilkins CT8SW

Bowers & Wilkins 15 inch Active Subwoofer 1000 WATT

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The Bowers & Wilkins CT8SW Subwoofers in home theatre systems can sometimes sound like “add-ons”. This is because setting up a subwoofer for both the highest quality music performance and the greatest impact in an audio-visual performance can be a compromise. But it needn’t be that way.

The CT8 SW is a passive subwoofer designed to handle the audio-visual Low-Frequency Effects channel, not by blunt addition but by integrated extension of CT8 FR front speaker bandwidth down to 13Hz - reproducing the LFE signals without risking musical dynamics and imaging. A sub-woofer used with each CT8 LR, controlled by the CT8 XO crossover/equaliser, means that low-frequency effects are integrated with the front speakers, removing even a whiff of compromise. Closed box loading, a 380mm Rohacell® driver, and a 70 litre Matrix™-braced enclosure together mean home theatre bass will never be quite the same again.  

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What's included in the box

  • Enclosure type:Sealed
  • Frequency range:18Hz (measured at -3dB) - 0.5kHz
  • Recommended power:60W - 1000W
  • Sensitivity:93dB at 2.83V/1m
  • Nominal impedance:8 ohms
  • Minimal impedance:4 ohms
  • Number of drivers:1
  • Number of frequency bands: 1-way


Technical Specifications : CT8 SW
Description Closed-box subwoofer
Dimensions Height: 475mm (18.7 in) (without spike feet)
Width: 475mm (18.7 in)
Depth: 475mm (18.7 in)
Net Weight 35kg (77 lb)
Freq. Response 18Hz – 35Hz ±3dB on reference axis (using active crossover/equaliser)
Freq. Range -6dB at 13Hz and 40Hz (using active crossover/equaliser)
Sensitivity 90dB spl (2.83V, 1m)
Normal Impedance 0.1ohms
Drive Units Unit 1: 1x ø380mm (15 in) carbon fibre/Rohacell® sandwich cone bass
Unit 2:
Unit 3:
Finish Black
Dispersion Description: Within 2dB of reference response
Horizontal: over 90º arc
Vertical: over 90º arc
Harmonic Distortion 2nd and 3rd harmonics (90dB, 1m) <1% 30Hz – 500Hz <0.5% 45Hz – 300Hz
Crossover Frequency 40Hz

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