B&W 685

For hi-fi or home cinema in small to medium-sized rooms, you need a loudspeaker that doesn’t take up floor area, but whose sound can still command the space. You’ll find the 685, which can sit on a shelf, table, stand or wall-mount, an inspired choice.
Its 165mm diameter Kevlar® cone bass/midrange is based on a tried-and-trusted B&W design, but its new fixed centre bullet helps to smooth the response in upper frequencies. Also, by setting the bass/midrange closer to the tweeter than in equivalent earlier speakers, we have improved the integration and vertical dispersion of sound from the two units. The Nautilus™ tube-loaded, aluminium dome tweeter, featuring a new surround material to improve spaciousness and imaging, adds needle-sharp top end all the way to 50kHz and beyond.
The improvements to the drive units in the new 600 Series make it possible, for the first time, to introduce a minimalist crossover to the range. The use of components that are fewer in number but higher in quality – hand-picked in exhaustive listening tests – reduces the degradation of the signal significantly. So, whether you’re enjoying hi-fi or home cinema, what you hear is that much closer to what was recorded.
Visually, a refreshed, contemporary design language and a widened choice of wood finishes allows the 685 to fit in effortlessly with any interior.
| Woven Kevlar |
Yes |
| Crossover Tuning |
Yes |
| Nautilus Tapering Tube |
Yes |
| Flowport |
Yes |
| Mushrooms |
|
| FST |
|
| Tweeter on Top |
|
| Matrix |
|
| Rohacell |
|
| Diamond Tweeters |
|
| Sphere / Tube Enclosure |
|
| De-Coupling |
|
| Nautilus |
|
| Technical features |
Nautilus™ tube loaded aluminium dome tweeter |
|
Kevlar® brand fibre cone bass/midrange |
|
Flowport™ |
| Description |
2-way vented-box system |
| Drive units |
1x ø25mm (1 in) aluminium dome high-frequency |
|
1x ø165mm (6.5 in) woven Kevlar® cone bass / midrange |
| Frequency range |
-6dB at 42Hz and 50kHz |
| Frequency response |
49Hz - 22kHz ±3dB on reference axis |
| Dispersion |
Within 2dB of reference response |
|
Horizontal: over 60º arc |
|
Vertical: over 10º arc |
| Sensitivity |
88dB spl (2.83V, 1m) |
| Harmonic distortion |
2nd and 3rd harmonics (90dB, 1m) |
|
<1% 100Hz - 22kHz |
|
<0.5% 150Hz - 20kHz |
| Nominal impedance |
8Ω (minimum 3.7Ω) |
| Crossover frequency |
4kHz |
| Crossover filters |
1st Order – tweeter |
|
1st Order – bass/midrange |
| Recommended amplifier power |
25W - 100W into 8Ω on unclipped programme |
| Max. recommended cable impedance |
0.1Ω |
| Dimensions |
Height: 340mm (13.4 in) |
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Width: 198mm (7.8 in) |
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Depth: 331mm (12.3 in) |
| Net weight |
7.0kg (15.4 lb) |
| Finishes |
Black Ash Vinyl |
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Light Oak Vinyl |
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Red Cherry Vinyl |
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Wengé Vinyl |
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