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
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.
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.
Feature Set Includes:
- 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
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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)
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Harmonic distortion 2nd and 3rd harmonics (90dB, 1m on axis)
<1% 80Hz – 20kHz
<0.3% 100Hz – 20kHz - Nominal impedance 8Ω (minimum 3.0Ω)
- Recommended amplifier power 50W – 500W into 8Ω on un-clipped program