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..
The science of sound
Innovation is at the heart of everything we do. We question, we examine, we understand and then we evolve. We use computer modelling to explore and reimagine every aspect of loudspeaker design. Learn more about all the technologies that combine to make 800 Series Diamond so special here.
Step up for more power
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.
Specifications
Technical features: Diamond tweeter, Solid body Tweeter-on-Top, Continuum cone FST™, Anti-Resonance plug, Biomimetic Suspension, Turbine Head, Matrix™, Aerofoil cone bass units, Flowport™
Description: 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 (+/-3dB from reference axis): 19Hz to 28kHz
Sensitivity (on axis at 2.83Vrms at 1m): 90dB
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
Dimensions: Height: 1165mm, Width: 357mm, Depth: 511mm
Neto weight: 62.15kg
Package Contents: Bowers & Wilkins Floorstanding Speaker 803 D4, Satin Rosenut, 1Pc, Grille, Terminal link wires, Stabilisers, Stabiliser caps, T45 stabiliser adjustment and midrange end cap removal wedge tool, Metal spike, adjustment bar, Cleaning cloth, Manual.
