Bowers & Wilkins HTM71 S3 mocha

The HTM71 S3 features Tweeter-on-Top technology, ensuring seamless integration with similarly equipped models from the 700 Series range to complete a surround sound system.

Exceptional Sound

With its composite construction, the Continuum diaphragm avoids abrupt behavioral transitions in the speaker that can impair the performance of a conventional transducer. The result is a more open and neutral rendering for precise and transparent reproduction of voices and instruments.

Precision and Transparency

Each three-way speaker in the new 700 Series has a dedicated midrange driver that utilizes four key Bowers & Wilkins technologies: the Continuum diaphragm, FST, Biomimetic Suspension, and midrange decoupling, the latter ensuring minimal interference with the operation of the speaker’s bass drivers.

The Culmination of Science

Developed using advanced computer modeling techniques, the Aerofoil Profile bass diaphragm has variable thickness, providing rigidity where it’s needed most. The result: deep, dynamic bass.

Technical Specifications

Acoustic Configuration

• 3-way system with bass-reflex enclosure
• Aerodynamic profile bass-reflex port (Aerofoil Flowport)

Transducers

• 1 decoupled carbon dome tweeter, 25 mm
  • Rigid structure top-mounted tweeter (Tweeter-on-Top)
• 1 midrange driver with 130 mm Continuum cone FST
• 2 bass drivers with 130 mm Aerofoil diaphragm

Audio Performance

• Recommended amplification: 30 W - 200 W at 8 Ω (undistorted signal)
• Frequency range: 45 Hz to 33 kHz
• Frequency response (± 3 dB): 50 Hz - 28 kHz
• Sensitivity: 89 dB SPL (2.83 V RMS, 1 m)
• Nominal impedance: 8 Ω (minimum 3 Ω)

Distortion

• Harmonic distortion 2nd and 3rd harmonics (90 dB, 1 m):
  • < 1% from 90 Hz to 22 kHz
  • < 0.5% from 120 Hz to 20 kHz

Dimensions and Weight

• Dimensions (W × H × D):
  • Speaker only: 628 × 165 × 318 mm
  • Height with tweeter: 233 mm
  • Depth with grille and terminals: 356 mm
• Weight: 17.5 kg