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804 D3 – Imperious performer

The 804 D3 delivers incredibly high-performance sound in a traditional loudspeaker form with a smaller footprint.


804D3 is a traditional-looking floorstanding speaker featuring cutting edge technology.

The ultra-rigid cabinet plays host to a diamond dome tweeter.

Continuum cone midrange and aerofoil bass drivers.

All of these come together to generate room filling, highly detailed performance.




Bracing is essential in keeping a speaker stable, so the character of instruments comes through cleanly.

Developed using computer modelling and constructed from wood ply with metal reinforcement, Matrix offers the ultimate in bracing.

Continuum cone


The Continuum cone delivers pristine midrange performance by effectively negating the break-up behaviour that can adversely effect this all-important part of the spectrum.


Aerofoil cone


The Aerofoil cone’s variable thickness provides added strength where it is needed to maintain its pistonic shape, delivering rock sold bass.

Diamond Dome Tweeters


Incredibly light, yet unbelievably rigid, Diamond is the ultimate tweeter material. Delivering the most revealing, natural treble you will ever hear.


Wolf in sheep’s clothing

It might have a more traditional appearance than other speakers in the range, but don’t let that fool you.

The 804 D3 delivers incredible acoustic transparency, thanks to unique 800 Series Diamond features such as their Continuum cone and augmented Matrix bracing system.

So while its looks may be conventional, its performance is anything but.


Specifications 804 D3

Technical features

Diamond tweeter

Continuum cone FST TM

Aerofoil cone bass units FlowportTM

Optimised matrix

Solid body tweeter

Description 3-way vented-box system

Drive units

1x ø25mm (1 in) diamond dome high-frequency

1x ø130mm (5 in) Continuum cone FSTTM midrange

2x ø165mm (6.5 in) Aerofoil cone bass units

Frequency range 20Hz to 35kHz

Frequency response (+/-3dB from reference axis) 24Hz to 28kHz

Sensitivity 89dB SPL (2.83Vrms at 1m)

(on axis at 2.83Vrms)

Harmonic distortion

2nd and 3rd harmonics (90dB, 1m on axis) <1 % 70Hz – 20kHz
<0.3% 120Hz – 20kHz

Nominal impedance 8Ω (minimum 3.0Ω)

Recommended amplifier power 50W – 200W into 8Ω on unclipped programme

Net weight 33kg (73lb)

Finishes Real wood veneers: Rosenut
painted finish: Gloss Black or Satin White


Height: Width: Depth:

1019mm (40.1 in) 238mm (9.4 in) 345mm (13.6 in)



Stand mount versions also available 805 D3