B&W 704 S2 (Rosenut)
A slim, high-performance floorstander designed to blend unobtrusively into your home environment.
Looks can be deceiving. Despite its slim dimensions, the 704 S2 has the commanding presence of a much larger speaker, thanks to advanced technologies such as a dedicated Continuum™ cone FST™ midrange.
Carbon Dome™ tweeter
Carbon Dome™ tweeters are a brand new technology 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.
Continuum™ Cone
First introduced with the 800 Series Diamond, the Continuum™ cone represents the biggest step-change in midrange performance since Kevlar®. Its woven, coated material provides highly controlled break-up, resulting in a more open, neutral midrange.
Decoupled midrange
The midrange driver in the floor-standers feature a decoupled design, adapted from a similar system in the 800 Series Diamond. Decoupling reduces cabinet colouration, and boosts midrange clarity.
Aerofoil™ Profile bass cone
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.
Technical features
Decoupled Carbon Dome tweeter Continuum cone FST midrange Decoupled midrange Aerofoil profile bass cones Flowport™ |
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Description | 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 | -6dB at 43Hz and 33kHz |
Frequency response | 48Hz - 28kHz ±3dB |
Sensitivity | 88dB spl (2.83Vrms, 1m) |
Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) <1% 100Hz - 22kHz <0.5% 300Hz - 20kHz |
Nominal impedance | 8Ω (minimum 3.1Ω) |
Recommended amplifier power | 30W - 150W into 8Ω on unclipped programme |
Dimensions | Height: 925mm (36.4 in) cabinet only 959mm (37.8 in) including plinth Width: 165mm (6.5 in) cabinet only 252mm (9.9 in) including plinth Depth: 255mm (10in) cabinet only 277mm (10.9 in) inc. grille and terminals 298mm (11.7 in) inc |
Net weight | 18.5kg (41 lb) |
Finishes Cabinet: | Rosenut Gloss Black Satin White |
Grille: | Black Grey (Satin White only) |