The 683 S2 features a Decoupled Double Dome tweeter - technology evolved from Bowers & Wilkins CM10 speaker. The double dome design uses an extremely thin aluminium dome for lightness, surrounded by a thicker aluminium ring for rigidity. The result is a far more precise treble performance. And while the tweeter looks like it’s part of the main speaker, it’s physically separated in its own gel-filled cavity, so performance isn’t hit by unwanted resonances or vibrations, for a more natural, spacious sound.
Serious and accurate bass performance is equally vital to such a room-filling speaker. That’s why the 683 S2 features a new bass driver construction method, using a similar method of bracing to the tweeter with twin layers of aluminium. The richer, distortion-free bass response is sumptuous.
As well as new bass driver construction techniques and a new tweeter, brought in from Bower & Wilkins high-end series, the 683 S2 also boasts an FST Kevlar midrange driver. Serious technology, serious performance, but seriously affordable for a speaker of this calibre.
Woven Kevlar Y Crossover Tuning Y Nautilus Tapering Tube Y Flowport Y Mushrooms Y FST Y Technical features
Decoupled Double Dome aluminium tweeter with Nautilus™ tube loadingKevlar®
brand fibre cone FST™ midrange driverDual-layer aluminium cone bass driver Flowport™
Description 3-way vented-box system Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FST™ midrange
2x ø165mm (6.5 in) aluminium cone bass
Frequency range -6dB at 30Hz and 50kHz Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 89dB spl (2.83V, 1m) Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
<1% 95Hz - 22kHz
<0.5% 120Hz - 20kHz
Nominal impedance 8Ω (minimum 3.0Ω) Crossover frequencies 400Hz, 4kHz Recommended amplifier power 25W - 200W into 8Ω on unclipped programme Max. recommended cable impedance 0.1Ω Dimensions Height: 985mm (38.8 in) cabinet only
Width: 190mm (7.5 in) cabinet only
Depth: 364mm (14.3 in)
Net weight 27.2kg (59.7 lb)