The loudspeaker that sets the standard other high-end designs will be judged by for years to come. Endowed with every new technology the 800 Series Diamond™ has to offer, the reference-quality 801 D4 is an instant icon.
The ultimate 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 801 D4 is our best yet, upgraded with extensive aluminium bracing to reinforce key stress points.
The all-aluminium Turbine Head houses our Continuum™ midrange cone in a stiff and critically damped enclosure to eliminate unwanted resonances. At the same time, it’s decoupled from both the bass enclosure and the tweeter body. The result? The most realistic midrange sound yet.
Sometimes, making a big difference takes unconventional thinking. Our new Biomimetic Suspension revolutionises midrange performance by greatly reducing the unwanted air pressure and coloration that a traditional fabric spider can generate. The result? Midrange transparency you wouldn’t believe.
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.
Size & weight
Height: 1221mm (48.1 in)
Width: 451mm (17.8 in)
Depth: 600mm (23.62 in)
100.60kg (221.8 lb)
Solid body Tweeter-on-Top
Continuum™ cone FST
Aerofoil™ cone bass units
1x ø25mm (1in) Diamond dome high-frequency
1x ø150mm (6in) Continuum cone FST midrange
2x ø250mm (10in) Aerofoil cone bass units
Frequency responce (+/-3dB from reference axis)
15Hz to 28kHz (+/-3dB from reference axis)
2nd and 3rd harmonics (90dB,1m on axis)
<1% 30Hz – 20kHz
<0.3% 100Hz – 20kHz
Recommended amplifier power
50W – 1000W into 8Ω on unclipped programme
3-way vented-box system
13Hz to 35kHz
Sensitivity (on axis at 2.83Vrms at 1m)
90dB (on axis at 2.83Vrms at 1m)
8Ω (minimum 3.0Ω)
Max recommended cable impedance