Woven Kevlar
Crossover Tuning
Nautilus Tapering Tube
Flowport
Technical features Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone bass/midrange
Description 2-way closed-box selectable dipole/monopole surround system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
2x ø80mm (3 in) midrange / high frequency
1x ø130mm (5 in) woven Kevlar® cone bass / midrange
Frequency range -6dB at 63Hz and 42kHz (monopole mode)
-6dB at 63Hz and 15kHz (dipole mode)
Frequency response 85Hz – 22kHz ±3dB on reference axis (monopole mode)
85Hz – 10kHz ±3dB power averaged over front hemisphere (dipole mode)
Dispersion Monopole mode: within 2dB of reference response
Horizontal: over 40º arc
Vertical: over 10º arc
Dipole mode: horizontal figure of eight
Effective null zone ±20º (250Hz – 15kHz)
Sensitivity 89dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m) 
<1% 130Hz – 20kHz
Nominal impedance 8? (minimum 3.3?)
Crossover frequency 4kHz (monopole mode)
250Hz (dipole mode)
Crossover Filters 2nd Order – midrange / high frequencyt
2nd Order – bass
Recommended amplifier power 25W – 100W into 8? on unclipped programme
Max. recommended cable impedance 0.1?
Dimensions Height: 249mm (9.8 in)
Width: 387mm (15.25 in)
Depth: 186mm (7.3 in)
Net weight 5.2kg (11.5 lb)
Finishes WHITE