Our most compact headed model brings all of the technical advantages of a dedicated midrange enclosure – the iconic Turbine Head – to a smaller footprint that’s easily accommodated in any home. Small doesn’t mean compromised, either: 803 D4 still bristles with technical innovation throughout.
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
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
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: 1165 mm
Width: 357 mm
Depth: 511 mm
Net weight
62.15kg
Finishes
Gloss Black cabinet with Black grille
Satin Rosenut cabinet with Black grille
Satin Walnut cabinet with grey grille
White cabinet with grey grille
