The imposing 683 is the genuine three-way speaker of the 600 Series, with a line-up of technologies and a level of performance that defies its entry-level place in the market. For large rooms, two 683s make a formidable partnership, either for stereo hi-fi or fronting a home theatre installation.
Deep, dynamic, bottom-end power is delivered by a pair of aluminium/paper/Kevlar® composite cone bass drive units. The 150mm Kevlar® midrange handles middle frequencies with its characteristic clarity and tunefulness, but, for the first time in a 600 Series speaker, includes FST cone surround technology for extra detail and resolution. 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
|
| Mushrooms |
Yes
|
| FST |
Yes
|
| Technical features |
Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone FST™ midrange
Aluminium/paper/Kevlar® 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/paper/Kevlar® cone bass |
| Frequency range |
-6dB at 30Hz and 50kHz |
| Frequency response |
38Hz - 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 |
350Hz, 4kHz |
| Crossover Filters |
1st Order – tweeter
2nd Order – midrange low pass
2nd Order – midrange high pass
3rd Order – bass |
| Recommended amplifier power |
25W - 200W into 8Ω on unclipped programme |
| Max. recommended cable impedance |
0.1Ω |
| Dimensions |
Height: 985mm (38.8 in) (not including plinth or feet)
Width: 198mm (7.8 in)
Depth: 340mm (13.4 in) |
| Net weight |
26kg (57.3 lb) |
| Finishes |
Black Ash
Red Cherry |
