Center-channel speaker

HTM81 D4

Center-channel speaker
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HTM81-D4 in Black HTM81-D4 in Black HTM81-D4 in Black HTM81-D4 in Black
HTM81-D4 in Black

HTM81 D4

Our largest centre-channel speaker is designed to partner the 801 D4 and 802 D4. A powerful performer, it has both the scale and the midrange extension to perfectly match the quality of its illustrious stablemates. *Stand(s) not included.

  • Diamond Tweeter
  • Solid body Tweeter-on-Top
  • Continuum™ Cone FST
  • Anti-Resonance Plug
  • Biomimetic Suspension
  • Matrix™
  • Aerofoil™ Cone Bass Units
  • Flowport™
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White Gloss Black
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HTM81 D4

HTM81 D4

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At the center of it all

At the center of it all

The center-channel speaker is arguably the most important in home theater – and the HTM81 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

Aerofoil bass cone

Our Aerofoil bass cone technology remains an outstanding solution to the conundrum of combining low mass and high stiffness in bass cones, thanks to its carbon-fiber skin and variable-profile foam core. Now, we have added the foam Anti-Resonance Plug for lower distortion and 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 is the perfect combination of low mass, exceptional stiffness and outstanding accuracy. 15 years after we introduced it, we haven’t found a better tweeter dome technology.

Diamond dome tweeter
Aluminum bass pods

Aluminum bass pods

HTM81 D4 mounts two Aerofoil bass cones in twin solid aluminum bass pods, each of which is clamped into an aluminum plate fixed to the stiffest part of its curved cabinet. Formed as single pieces of metal, these stiff structures provide the perfect mechanical location for those powerful bass cones.

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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The science of sound

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Setting new standards of performance

This Model
HTM81-D4 in Black
HTM81 D4
Flagship 800 Series Diamond center channel speaker
1x 25mm (1 in) Diamond dome high-frequency
1x 150mm (6 in) Continuum cone FST midrange
2x 200mm (8 in) Aerofoil cone bass
HTM82-D4 in Black
HTM82 D4
Flagship 800 Series Diamond center channel speaker
1x 25mm (1 in) Diamond dome high-frequency
1x 130mm (5 in) Continuum cone FST midrange
2x 165mm (6.5 in) Aerofoil cone bass
HTM72 S3, , dynamic
HTM72 S3
High-performance 700 Series center channel speaker
1x 25mm (1 in) Decoupled carbon dome high-frequency
2x 130mm (5 in) Continuum cone bass/midrange
HTM71-S3 in Black
HTM71 S3
High-performance 700 series center channel speaker
1x 25mm (1 in) Decoupled carbon dome high-frequency
1x 130mm (5 in) Continuum cone FST midrange
2x 130mm (5 in) Aerofoil Profile bass
HTM81 D4
Details & Specifications