The Bowers and Wilkins HTM81 Diamond D4 largest centre channel speaker partners with the 801 D4 and 802 D4. A powerful performer, it has both the scale and the midrange extension to match the quality of its illustrious stablemates perfectly.
At the Centre of It All
The centre-channel speaker is arguably the most important in home theatre โ and the HTM81 Diamond D4 has an enviable array of advanced technologies to reinforce that point, including Solid Body tweeter-on-top, a decoupled Continuum Cone midrange drive unit and twin 200mm (8-in) Aerofoil bass cones.
Aerofoil Bass Cone
Our Aerofoil bass cone technology remains an outstanding solution to combining low mass and high stiffness in bass cones, thanks to its carbon-fibre skin and variable-profile foam core. We have added the foam Anti-Resonance Plug for lower distortion and even cleaner bass from the HTM81 Diamond D4 centre.
Diamond Dome Tweeter
One of our most significant accomplishments over the past two decades, the ultra-stiff, supremely accurate Diamond dome tweeter is the perfect combination of low mass, exceptional stiffness and outstanding accuracy. 15 years after we introduced it, we havenโt found better tweeter dome technology for the Bowers and Wilkins HTM81 D4.
Biomimetic Suspension
Sometimes, making a big difference takes unconventional thinking. The new Biomimetic Suspension revolutionises midrange performance by greatly reducing the unwanted air pressure and colouration that a traditional fabric spider can generate. The result? The HTM81 Diamond D4 centre speaker has midrange transparency that you wouldnโt believe.
The Science of Sound
Innovation is at the heart of everything we do. We question, we examine, we understand, and then we evolve. Bowers and Wilkins use computer modelling to explore and reimagine every aspect of the HTM81 D4 speaker design.
Technical Specifications
- Description: 3-way vented-box system
- Tweeter: 1x รธ25mm (1in) Diamond dome high-frequency
- Midrange: 1x รธ150mm (6in) Continuum cone FST midrange
- Bass: 2x รธ200mm (8in) Aerofoil cone bass units
- Frequency range: 20Hz to 35kHz
- Sensitivity: 90dB (on axis at 2.83Vrms at 1m)
- Nominal impedance: 8ฮฉ (minimum 3.0ฮฉ)
- Recommended amplifier power: 50W โ 500W into 8ฮฉ on unclipped programme
- Dimensions: 334 mm x 847 mm x 371 mm
- Weight: 32.2kg
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