





801 D4
Flagship 800 Series Diamond floor-standing speakers
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.
- Diamond Tweeter
- Solid body Tweeter-on-Top
- Continuum™ Cone FST
- Anti-Resonance Plug
- Biomimetic Suspension
- Turbine™ Head
- Matrix™
- Aerofoil™ Cone Bass Units
- Flowport™
The ultimate Matrix™
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.
Turbine™ Head
The all-aluminum 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.
Biomimetic Suspension
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.
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Setting new standards of performance
- Performance
- Tweeters
- Midrange
- Bass
- Enclosure Design
- Reference
- 1 x 25mm (1 in) Diamond dome high-frequency
- 1 x 150mm (6 in) Continuum cone FST midrange
- 2 x 250mm (10 in) Aerofoil profile bass
- 3-way vented-box system
- Reference
- 1 x 25mm (1 in) Diamond dome high-frequency
- 1 x 150mm (6 in) Continuum cone FST midrange
- 2 x 200mm (8 in) Aerofoil cone bass
- 3-way vented-box system
- Reference
- 1 x 25mm (1 in) Diamond dome high-frequency
- 1 x 130mm (5 in) Continuum cone FST midrange
- 2 x 180mm (7 in) Aerofoil cone bass
- 3-way vented-box system
- Reference
- 1 x 25mm (1 in) Diamond dome high-frequency
- 1 x 150mm (6 in) Continuum cone FST midrange
- 2 x 250mm (10 in) Aerofoil profile bass
- 3-way vented-box system