HTM81 D4
Center-channel speaker

Our largest center-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.
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.
Technical details
- Technical featuresDiamond tweeter
Solid body Tweeter-on-Top
Continuum™ cone FST
Matrix™
Anti-Resonance plug
Biomimetic Suspension
Aerofoil™ cone bass units
Flowport
- Description3-way vented-box system
- Drive units1x ø25mm (1in) Diamond dome high-frequency
1x ø150mm (6in) Continuum cone FST midrange
2x ø200mm (8in) Aerofoil cone bass units
- Frequency range20Hz to 35kHz
- Frequency response28Hz to 28kHz (+/-3dB from reference axis)
- Sensitivity90dB (on axis at 2.83Vrms at 1m)
- Harmonic distortion2nd and 3rd harmonics (90dB, 1m on axis)
<1% 80Hz – 20kHz
<0.3% 100Hz – 20kHz
- Nominal impedance8Ω (minimum 3.0Ω)
- Recommended amplifier power50W – 500W into 8Ω on unclipped programme
- Max recommended cable impedance0.1Ω