Bowers & Wilkins 600 Series Decoupled dual-layer 1" speaker 684 S2
Bowers & Wilkins Room-filling sound without a room-filling speaker cabinet. Slimmer than ever before, the 684 S2 offers an amazing combination of floorstander power, audio performance and unbeatable value.
Switching to 5-inch bass/midrange drivers from the previous 6.5-inch cones, means the 684 S2 is now significantly slimmer than its predecessor, with simultaneously improved audio performance, thanks to Bowers & Wilkins innovation. The two Kevlar cone drivers benefit from smaller voice coils to increase sensitivity.
The 5-inch drivers now also feature Anti-Resonance Plug dustcaps, technology taken from our high-end PM1 speakers, that improve pistonic movement inside the voice coil. This helps to deliver amazingly distortion-free midrange performance, all in a smaller space.
As well as slimmer, improved driver performance, the 684 S2 also features a Decoupled Double Dome tweeter. Double dome technology, brought across from the CM10, increases tweeter rigidity for a more precise sound, while the tweeter sits in a gel-filled cavity, decoupled from the surrounding cabinet - which removes resonances and vibrations, for a more natural, spacious sound.
Specifications | |
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Technical features | Decoupled Double Dome aluminium tweeter with Nautilus™ tube loading Kevlar® brand fibre cone bass/midrange drivers Flowport™ |
Description | 2-way vented-box system |
Drive units | 1x ø25mm (1 in) aluminium dome high-frequency 2x ø130mm (5 in) woven Kevlar® cone bass/ midrange |
Frequency range | -6dB at 45Hz and 50kHz |
Frequency response | 72Hz - 22kHz ±3dB on reference axis |
Dispersion | Within 2dB of reference response Horizontal: over 60º arc Vertical: over 10º arc |
Sensitivity | 87dB spl (2.83V, 1m) |
Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) <1% 140Hz - 22kHz <0.5% 180Hz - 20kHz |
Nominal impedance | 8Ω (minimum 3.5Ω) |
Crossover frequencies | 4kHz |
Recommended amplifier power | 25W - 150W into 8Ω on unclipped programme |
Max. recommended cable impedance | 0.1Ω |
Dimensions | Height: 920mm (36.2 in) cabinet only Width: 160mm (6.3 in) cabinet only Depth: 234mm (9.2 in) |
Net weight | 14.2kg (31.2 lb) |
Finishes | Black Ash White |