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804 04 For listeners who prefer a more conventional aesthetic but crave the performance of an 800 Series Diamond loudspeaker, the 804 D4 is a perfect choice. Its new reverse-wrap cabinet follows the proven design principles established by its larger siblings.
Reverse wrap cabinet When it came to designing the ideal shape for the
800 Series Diamond cabinet, we did a U-turn. Quite literally. Our cabinets are formed from one continuous curve, backed by a spine of solid aluminum, so the sound dispersion is improved and cabinet reflection is reduced.
Aluminum plinth A great speaker needs a rock-solid foundation. The new 804 D4 uses a downwards-firing Flowport™ exiting onto a solid aluminum plinth complete with a steel constrained layer damping sheet, which controls unwanted resonance. It also has greatly upgraded spikes for maximum stability.
804 D4 is the entry-level tower speaker model in the 800 Series Diamond range. Step up to 803 D4 and you’ll find larger bass drivers (180mm, 7-in) plus, crucially, the addition of a Turbine™ Head enclosure for the 130mm (5-in) midrange cone, which adds even more spaciousness to the sound.
|Dimensions||Height: 1071mm (42.2 in)
Width: 306mm (12 in)
Depth: 391mm (15.4 in)
|Net weight||36.85kg (81.2 lb)|
|Technical features||Diamond tweeter
Continuum™ cone FST
Aerofoil™ cone bass units
|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
|Color||Gloss Black, Satin Rosenut, White, Satin Walnut|