HTM71 S3

Our flagship centre-channel speaker features a Carbon Dome drive unit housed in a Tweeter-On-Top enclosure, a 130mm (5in) Continuum Cone FST™ midrange driver – particularly important for clarity with dialogue – and twin Aerofoil™ Profile bass cones. It’s the perfect partner for the 705 S3, 703 S3 and 702 S3.

Uncompromising vocal performance

The HTM71 S3 now features Tweeter-on-Top technology, ensuring perfect integration with similarly equipped 700 Series models in a surround sound system.

A house for high frequencies

The 700 Series features the latest generation of our iconic Solid Body Tweeter-on-Top housing. Its new, more elongated form incorporates a longer tube-loading system to produce an even more free and open sound with high frequencies. The carefully decoupled housing is milled from a single solid block of aluminium to better resist resonance.

Sharper detail

Carbon Dome tweeters are purpose-built for the 700 Series. Delivering a dramatic improvement on the aluminium double dome tweeter, they raise the breakup threshold to 47kHz, for pinpoint imaging accuracy and detail.

Truly amazing sound

Thanks to its composite construction, the Continuum™ cone avoids the abrupt transitions in behaviour that can impair the performance of a conventional drive unit. The result is a more open, neutral performance that delivers voices and instruments with precision and transparency.

Clean and clear

Every three-way loudspeaker in the new 700 Series has a dedicated midrange cone using four key Bowers & Wilkins technologies: the Continuum cone, FST™, Biomimetic Suspension and midrange decoupling, the latter ensuring minimal interference from the operation of the loudspeaker’s bass drivers.

A triumph of science

Developed using advanced computer modelling techniques, the Aerofoil™ Profile bass cone has variable thickness, providing stiffness and rigidity where it’s needed most. The result: deep and dynamic bass.

Technical features 
Decoupled Carbon Dome tweeter
Solid Body Tweeter-on-Top
Continuum™ cone FST midrange
Aerofoil™ Profile bass cones
Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1in) Decoupled Carbon Dome high-frequency
1x ø130mm (5in) Continuum cone FST midrange
2x ø130mm (5in) Aerofoil Profile bass
Frequency range 
45Hz to 33kHz
Frequency response (+/-3dB from reference axis)
50Hz - 28kHz
Sensitivity (on axis at 2.83Vrms at 1m)
89dB
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m on axis)
<1% 90Hz - 22kHz
<0.5% 120Hz - 20kHz
Nominal impedance 8Ω (minimum 3.0Ω)
Recommended amplifier power
30W - 200W into 8Ω on unclipped programme
Max. recommended cable impedance
0.1Ω
Dimensions 
Height:
165mm (6.5in) cabinet only
233mm (9.2in) including tweeter
Width:
628mm (24.7in) cabinet only
Depth:
318mm (12.5in) cabinet only
356mm (14in) including grille and terminals
Net weight 
17.5kg (38.5lbs)
Finishes 
Cabinet:
Gloss black
Satin white
Mocha
Rosenut (APAC only)
Grille:
Black
Grey (Satin White only)