Bowers & Wilkins HTM81 D4 Centre Channel Speaker

The Bowers & Wilkins HTM81 D4 is a high-performance centre channel speaker designed to complement the flagship models of the 800 Series Diamond range. Crafted with precision and innovation, it ensures that dialogue and vocals are reproduced with lifelike clarity and natural tonality — the heart of any great cinematic experience.

At the core of its performance lies the Diamond Dome Tweeter, mounted in a Solid Body Tweeter-on-Top housing to minimize resonance and deliver pristine treble response. The Continuum™ cone FST midrange ensures incredibly detailed and transparent vocal reproduction, while the dual Aerofoil™ cone bass units provide depth and authority for explosive movie soundtracks and rich musical tones.

The Matrix™ bracing and Biomimetic Suspension technologies further enhance structural rigidity and reduce distortion, allowing every nuance to come through with precision. Together with Flowport™ technology, the HTM81 D4 achieves deep, controlled bass even at high volumes — perfect for dynamic home theatre setups.

Technical Specifications

• System: 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 – 35kHz

• Frequency Response: 28Hz – 28kHz ±3dB

• Sensitivity: 90dB (on axis at 2.83Vrms at 1m)

• Harmonic Distortion:

  • <1% (80Hz – 20kHz)

  • <0.3% (100Hz – 20kHz)

• Nominal Impedance: 8Ω (minimum 3.0Ω)

• Recommended Amplifier Power: 50W – 500W into 8Ω on unclipped programme

• Maximum Recommended Cable Impedance: 0.1Ω

• Dimensions (H×W×D): 334 × 847 × 371mm

• Net Weight: 32.20kg

• Finishes: Gloss Black, White

• Grille Options: Black, Grey

The Bowers & Wilkins HTM81 D4 is the ultimate centre channel for those who demand cinema-grade clarity, tonal accuracy, and immersive realism — all wrapped in the timeless craftsmanship that defines the 800 Series Diamond.