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Bowers & Wilkins HTM71 S3

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Our flagship center-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.
The HTM71 S3 now features Tweeter-on-Top technology, ensuring perfect integration with similarly equipped 700 Series models in a surround sound system.
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 aluminum to better resist resonance.
Carbon Dome tweeters are purpose-built for the 700 Series. Delivering a dramatic improvement on the aluminum double dome tweeter, they raise the breakup threshold to 47kHz, for pinpoint imaging accuracy and detail.
Thanks to its composite construction, the Continuum™ cone avoids the abrupt transitions in behavior 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.
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.
Developed using advanced computer modeling techniques, the Aerofoil™ Profile bass cone has a variable thickness, providing stiffness and rigidity where it’s needed most. The result: deep and dynamic bass.
Precision sound for sophisticated listening.

Size & weight
Height: 165mm (6.5 in) cabinet only
233mm (9.2 in) including tweeter
Width: 628mm (247 in) cabinet only 
Depth: 318mm (12.5 in) cabinet only
256mm (14.0 in) including grille and terminals
Net weight- 
17.45kg (38.5 lb)
Technical details
Technical features- 
Decoupled Carbon Dome tweeter
Solid Body Tweeter-on-Top
Continuum cone FST midrange
Aerofoil Profile bass cones
3-way vented-box system
Drive units- 
1x ø25mm (1 in) Decoupled Carbon Dome high-frequency
1x ø130mm (5 in) Continuum cone FST midrange
2x ø130mm (5 in) Aerofoil Profile bass
Frequency range-
45Hz and 33z
Frequency response-
50Hz-28kHz ±3dB
89dB spl (2.83Vrms, 1m)
Harmonic distortion- 
2nd and 3rd harmonics (90dB, 1m on axis)
<1% 90Hz-22kHz
<0.5% 120Hz-20kHz
Nominal impedance- 
8 (minimum 3.1 )
Recommended amplifier power-
30W-200W into 8 on an unclipped program
Max recommended cable impedance-
Finish Gloss Black, Satin White, Mocha