684
The 2½-way 684 floorstander is a great choice for hi-fi or home cinema in medium-sized to large rooms. Its twin Kevlar drive and aluminium dome tweeter make for a refined performance.
Red Cherry
Black Ash
The extended bass response and output capacity of the 2½-way 684 floorstander make it a great choice for hi-fi or home cinema in medium-sized to large rooms.
It features a new combination of a pair of Kevlar® cones for delivering its bass and midrange. The lower cone is dedicated to bass, which relieves the upper bass/midrange unit of the duty to handle heavy bass and leads to clearer, crisper midrange than you might find in smaller speakers. 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.
| Woven Kevlar | |
| Crossover Tuning | |
| Nautilus Tapering Tube | |
| Flowport | |
| Technical features | Nautilus™tube loaded aluminium dome tweeter Kevlar® brand fibre cone bass/midrange Kevlar® brand fibre cone bass driver Flowport™ |
| Description | 2½ -way vented-box system |
| Drive units | 1x ø25mm (1 in) aluminium dome high-frequency 1x ø165mm (6.5 in) woven Kevlar® cone bass/mid 1x ø165mm (6.5 in) woven Kevlar® cone bass |
| Frequency range | -6dB at 34Hz and 50kHz |
| Frequency response | 44Hz - 22kHz ±3dB on reference axis |
| Dispersion | Within 2dB of reference response Horizontal: over 60º arc Vertical: over 10º arc |
| Sensitivity | 90dB spl (2.83V, 1m) |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) <1% 90Hz - 22kHz <0.5% 120Hz - 20kHz |
| Nominal impedance | 8Ω (minimum 3.0Ω) |
| Crossover frequencies | 150Hz, 4kHz |
| Crossover Filters | 1st Order – tweeter 1st Order – bass/midrange 1st Order – bass |
| Recommended amplifier power | 25W - 150W into 8Ω on unclipped programme |
| Max. recommended cable impedance | 0.1Ω |
| Dimensions | Height: 910mm/35.8" (not including plinth or feet) Width: 198mm/7.8 Depth: 300mm/11.8 |
| Net weight | 18.2kg (40.1lb) |
| Finishes | Black Ash Red Cherry |
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