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In order to accomodate modern surround sound system, speakers are usually required at the side, or rear of the room.

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The B&W DS7 is an on-wall surround speaker which features monopole and dipole operation, and is a part of Bowers & Wilkins (B&W) near top of the line 700 series of home audio speakers.  In order to accomodate modern surround sound system, speakers are usually required at the side, or rear of the room.  The DS7 has been designed to be used in either configuration.  When being used in monopole mode, the DS7 uses its front 6.5" kevlar cone used as a bass/midrange driver and the front 1" allow dome tweeter used for highs.  In monopole mode, it should be placed at the rear of the room giving more directional information required for surround.  In dipole mode, the front tweeter is shut-off and one 4" driver on each side (x2) is used for mids and highs, while the front facing 6.5" kevlar cone is now only used for bass.  In this mode, the two side speakers are connected out of phase making the listener unaware of their location, giving a more cinematic feel when placed at the sides of a room.  Switching between the two modes can be done with a front mounted switch, or by using a 12V trigger. The tweeter is contained in Nautilus tapering tubes, which is designed to only project sound through a hollow pole magnet frontwards, and is tapered towards the rear to eliminate reflections off the rear of the cabinet producing unwanted sound effects. The B&W DS7 is available in black or white, with a removable black or white grill cloth for each side.

  • Crossover Tuning 
  • Nautilus Tapering Tube 
  • Nautilus tweeter
  • 2-way closed-box selectable dipole/monopole surround system
  • 1x ø25mm (1 in) alloy dome high-frequency
  • 2x ø100mm (4 in) midrange/high-frequency
  • 1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
  • Frequency range (monopole mode): -6dB at 60Hz and 42kHz
  • Frequency range (dipole mode): -6dB at 60Hz and 15kHz 
  • Frequency response (monopole mode): 80Hz – 22kHz ±3dB on reference axis
  • Frequency response (dipole mode):  80Hz – 10kHz ±3dB power averaged over front hemisphere
  • Dispersion (monopole mode): Within 2dB of reference response
  • Horizontal (monopole mode): over 40º arc
  • Vertical (monopole mode): over 10º arc
  • Dispersion (dipole mode): Horizontal figure of eight
  • Effective null zone (dipole mode): ±30º (250Hz – 15kHz)
  • Sensitivity: 89dB spl (2.83V, 1m)
  • Harmonic distortion: 2nd and 3rd harmonics (90dB, 1m) (
  • Nominal impedance: 8 Ohms (minimum 3.0 Ohms)
  • Crossover frequency: 4kHz (monopole mode) / 250Hz (dipole mode)
  • Recommended amplifier power: 25W – 120W into 8 Ohms on unclipped programme
  • Max. recommended cable impedance: 0.1 Ohms
  • Height: 302mm (11.9 in)
  • Width: 383mm (15.1 in)
  • Depth: 165mm (6.5 in)
  • Net weight: 8.5kg (19 lb)
  • Finishes: Black or white
  • Grille: Black or white cloth
  • 12V relay current requirement: 45mA
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