Description
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 (5in) midrange cone is carefully isolated from the impact of its bass cones thanks to its Turbine Head enclosure.
Solid Body Tweeter
The latest incarnation of our iconic Solid Body Tweeter-on-Top housing features an elongated form with a longer tube-loading system, producing an even more free and open sound with high frequencies. As before, the carefully decoupled housing is milled from a single solid block of aluminium to better resist resonance.
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.
Turbine Head
Hear the sound, not the cabinet. We’ve used separate midrange enclosures on 800 Series models from the very beginning: now, our all-aluminium
Turbine Head housing takes the concept to the next level. This phenomenally stiff and inert housing for the crucial midrange cone is carefully damped to avoid unwanted
resonances and decoupled from both the bass enclosure and the tweeter body. The result? The most realistic midrange sound yet.
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
19Hz to 28kHz (+/-3dB from reference axis)
Sensitivity
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
Dimensions
Height: 1165mm
Width: 357mm
Depth: 511mm
Net weight
62.15kg
Finishes
Cabinet:
Gloss Black
White
Satin Rosenut
Satin Walnut
Grille:
Black
Grey
Black
Grey
Reviews
There are no reviews yet.