Bowers & Wilkins - HTM81 D4 - Centre-Channel Speaker
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ℹ Product Information
HTM81 D4: The Ultimate Centre-Channel Speaker
Designed to perfectly complement the 801 D4 and 802 D4, our largest centre-channel speaker, the HTM81 D4, is a powerful performer with both the scale and midrange extension to match its illustrious stablemates. *Stand(s) not included.
Key Features
At the Center of It All: In home theatre setups, the center-channel speaker is arguably the most critical. The HTM81 D4 boasts an impressive array of advanced technologies, including the 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 combines low mass with high stiffness, using a carbon-fiber skin and variable-profile foam core. The addition of the foam Anti-Resonance Plug further reduces distortion and delivers even cleaner bass.
Diamond Dome Tweeter: One of our most significant accomplishments over the past two decades, the ultra-stiff, supremely accurate Diamond Dome tweeter combines low mass, exceptional stiffness, and outstanding accuracy. Even 15 years after its introduction, it remains unparalleled in performance.
Aluminium Bass Pods: The HTM81 D4 features two Aerofoil™ bass cones mounted in twin solid aluminium bass pods, each clamped into an aluminium plate fixed to the stiffest part of its curved cabinet. These single-piece metal structures provide the ideal mechanical support for the powerful bass cones.
The Science of Sound
Innovation is the core of our philosophy. We continuously question, examine, understand, and evolve our designs using computer modelling to reimagine every aspect of loudspeaker construction. Discover the technologies that make the 800 Series Diamond exceptional here.
Experience the HTM81 D4
Elevate your home theatre experience with the HTM81 D4, the ultimate centre-channel speaker. Visit us in-store to discover how this model delivers unparalleled audio quality and perfectly complements the 801 D4 and 802 D4.
ℹ Specifications
| Category | Specifications |
|---|---|
| Size & Weight | |
| Net weight | 32.20kg (71 lb) |
| Dimensions | Height: 334mm (13.1 in), Width: 847mm (33.3 in), Depth: 371mm (14.6 in) |
| Technical Details | |
| 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 ø150mm (6in) Continuum cone FST midrange, 2x ø200mm (8in) Aerofoil cone bass units |
| Frequency range | 20Hz to 35kHz |
| Frequency response | 28Hz to 28kHz (+/-3dB from reference axis) |
| Sensitivity | 90dB (on axis at 2.83Vrms at 1m) |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m on axis) <1% 80Hz – 20kHz, <0.3% 100Hz – 20kHz |
| Nominal impedance | 8Ω (minimum 3.1Ω) |
