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Bowers & Wilkins 803 D4 Tower Speaker (Each)

  • Sale
  • $ 12,500

Free standard shipping on all orders within the continental US.

B&W's most compact headed model brings all the technical advantages of a dedicated midrange enclosure - the Turbine™ Head, with its decoupled midrange cone - to a smaller footprint that's easily accommodated in any home.

803 D4 features all the most iconic ingredients in the 800 Series Diamond range including, of course, that famous headed enclosure. It is, however, smaller than its other siblings. Step up to the 802 D4, and you’ll get both larger 200mm (8-in) bass cones and a larger 150mm (6-in) midrange driver.

Small wonder

803 D4 may be notably more compact than the 801 D4 or 802 D4, but it still bristles with technical innovation, most obviously in its use of a three-box construction. Its 130mm (5-in) midrange cone is carefully isolated from the impact of its bass cones thanks to its Turbine Head enclosure.
Reverse Wrap cabinet
Instead of a conventional loudspeaker box, our cabinets are made from a continuous curved section of wood, with the drive units mounted at the heart of the curvature. This stiffer, more inert structure resists mechanical resonances far better and also ensures better dispersion of sound.

Enhanced Matrix™

Matrix bracing uses interlocking panels to reinforce loudspeaker cabinet walls in all directions internally, reducing resonance and creating a more believable soundstage. The Matrix assembly in 803 D4 is our best yet, ensuring optimum scale, power and intelligibility.

Aluminum bass pods

803 D4 mounts two Aerofoil™ bass cones in twin solid aluminum bass pods, each of which is clamped into an aluminum plate fixed to the stiffest part of its curved cabinet. Formed as single pieces of metal, these stiff structures provide the perfect mechanical location for those powerful bass cones.


Technical featuresDiamond tweeter:

  • Solid body Tweeter-on-Top
  • Continuum™ cone FST
  • Matrix™
  • Anti-Resonance plug
  • Biomimetic Suspension
  • Turbine™ Head
  • Aerofoil™ cone bass units
  • Flowport


  • 3-way vented-box system

Drive units:

  • 1x ø25mm (1in) Diamond dome high-frequency 
  • 1x ø130mm (5in) Continuum cone FST midrange 
  • 2x ø180mm (7in) Aerofoil cone bass units

Frequency range:

  • 16Hz to 35kHz

Frequency response:

  • 19Hz to 28kHz (+/-3dB from reference axis)


  • 90dB (on axis at 2.83Vrms at 1m)

Harmonic distortion:

  • 2nd and 3rd harmonics (90dB, 1m on axis) 
  • <1% 80Hz – 20kHz 
  • <0.3% 100Hz – 20kHz

Nominal impedance:

  • 8Ω (minimum 3.0Ω)

Recommended amplifier power:

  • 50W – 500W into 8Ω on unclipped programme

Max recommended cable impedance:

  • 0.1Ω

Net weight:

  • 62.15kg (137 lb)


  • Height: 1165mm (45.9 in)
  • Width: 357mm (14.1 in)
  • Depth: 511mm (20.1 in)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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