The 130mm diameter Kevlar® cone bass/midrange is based on a tried-and-trusted Bowers & Wilkins 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.
Specifications
| Woven Kevlar | Yes |
| Crossover Tuning | Yes |
| Nautilus Tapering Tube | Yes |
| Flowport | Yes |
| 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 ø130mm (5 in) woven Kevlar® cone bass/midrange |
| Frequency range | -6dB at 45Hz and 50kHz |
| Frequency response | 55Hz - 22kHz ±3dB on reference axis |
| Dispersion | Within 2dB of reference response Horizontal: over 60º arc Vertical: over 10º arc |
| Sensitivity | 84dB spl (2.83V, 1m) |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) <1% 110Hz - 22kHz <0.5% 150Hz - 20kHz |
| Nominal impedance | 8 ohms (minimum 5.1 ohms) |
| Crossover frequencies | 4kHz |
| Crossover Filters | 1st Order – tweeter |
| Recommended amplifier power | 25W - 100W into 8ohms on unclipped programme |
| Max. recommended cable impedance | 0.1 ohm |
| Dimensions | Height: 265mm (10.5 in) Width: 170mm (6.7 in) Depth: 284mm (11.2 in) |
| Net weight | 4.9kg (10.8 lb) |
| Finishes | Black Ash Red Cherry |