804 D4 - Tower speaker

804 D4

Tower speaker
804 D4 - White side front view
804 D4 - White side front covered woofers view
804 D4 - White front view
804 D4 - White back view
804 D4 - White front top close up view

804 D4

Tower speaker

$16,000 / pair

For listeners who crave the performance of an 800 Series Diamond tower speaker but prefer a more conventional aesthetic, the 804 D4 is the perfect choice. Its new cabinet and plinth make it our best-performing 804 yet.

  • Diamond Tweeter
  • Solid body Tweeter-on-Top
  • Continuum™ Cone FST
  • Anti-Resonance Plug
  • Biomimetic Suspension
  • Turbine™ Head
  • Matrix™
  • Aerofoil™ Cone Bass Units
  • Flowport™
Choose a finish
Gloss Black Satin Rosenut Satin Walnut White
White

804 D4

804 D4

$16,000 / pair
$16,000 / pair
Estimated to ship on {0}
Black 804 D4 front with black background

Classic quality

804 D4 is perhaps more conventional in appearance than other floor-standers in the 800 Series Diamond range, but it’s every bit as sophisticated. Its new Reverse-Wrap cabinet is both a mechanical and acoustic revolution in its class, and its new plinth ensures rock-solid, accurate bass response too.
Aluminum shell of top of speaker

Aluminium top-plate

Every stereo model in the new 800 Series Diamond range has a significantly upgraded cabinet with an all-new aluminium top-plate. This also provides a perfect mounting point for all-new Leather by Connolly trim, with luxurious black leather for dark cabinets and light grey for lighter finishes.

Reverse Wrap cabinet

Instead of a conventional loudspeaker box, the cabinet in 804 D4 is 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.

Wood interior of speaker
Aluminum spike underneath speaker

Aluminium plinth

A great speaker needs a rock-solid foundation. The new 804 D4 uses a downwards-firing Flowport exiting on to a solid aluminium plinth complete with a steel constrained layer damping sheet, which controls unwanted resonance. It also has greatly upgraded spikes for maximum stability and durability.

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.

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Setting new standards of performance

  • Performance
  • Tweeters
  • Midrange
  • Bass
  • Enclosure Design
This Model
804 D4 - White side front view
804 D4
Tower speaker
$16,000 / pair
  • Performance: Reference
  • Tweeters: 1 x 25mm (1 in) Diamond dome high-frequency
  • Midrange: 1 x 130mm (5 in) Continuum cone FST midrange
  • Bass: 2 x 165mm (6.5 in) Aerofoil cone bass
  • Enclosure Design: 3-way vented-box system
801 D4 - Black side front view
801 D4
Tower speaker
$46,000 / pair
  • Performance: Reference
  • Tweeters: 1 x 25mm (1 in) Diamond dome high-frequency
  • Midrange: 1 x 150mm (6 in) Continuum cone FST midrange
  • Bass: 2 x 250mm (10in) Aerofoil cone bass
  • Enclosure Design: 3-way vented-box system
802 D4 - Black side front view
802 D4
Tower speaker
$34,000 / pair
  • Performance: Reference
  • Tweeters: 1 x 25mm (1 in) Diamond dome high-frequency
  • Midrange: 1 x 150mm (6 in) Continuum cone FST midrange
  • Bass: 2 x 200mm (8 in) Aerofoil cone bass
  • Enclosure Design: 3-way vented-box system
803 D4 - Black side front view
803 D4
Tower speaker
$27,000 / pair
  • Performance: Reference
  • Tweeters: 1 x 25mm (1 in) Diamond dome high-frequency
  • Midrange: 1 x 130mm (5 in) Continuum cone FST midrange
  • Bass: 2 x 180mm (7 in) Aerofoil cone bass
  • Enclosure Design: 3-way vented-box system
804 D4
Details & Specifications
  • Net weight 36.85kg (81.2 lb)
  • Dimensions Height: 1071mm (42.2 in)
    Width: 306mm (12 in)
    Depth: 391mm (15.4 in)
  • Technical features Diamond tweeter
    Solid body Tweeter-on-Top
    Continuum™ cone FST
    Matrix™
    Anti-Resonance plug
    Biomimetic Suspension
    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 ø165mm (6.5in) Aerofoil cone bass units
  • Frequency range 20Hz to 35kHz
  • Frequency response 24Hz to 28kHz (+/-3dB from reference axis)
  • Sensitivity 89dB (on axis at 2.83Vrms at 1m)
  • Harmonic distortion 2nd and 3rd harmonics (90dB, 1m on axis)
    <1% 90Hz – 20kHz
    <0.3% 120Hz – 20kHz
  • Nominal impedance 8Ω (minimum 3.0Ω)
  • Recommended amplifier power 50W – 200W into 8Ω on unclipped programme
  • Max recommended cable impedance 0.1Ω
  • Cabinet finishes Gloss Black
    White
    Satin Rosenut
    Satin Walnut
  • Grille finishes Black
    Grey
    Black
    Grey