Woven Kevlar
Crossover Tuning
Nautilus Tapering Tube
Flowport
FST
Technical features Nautilus™ tube loaded aluminium dome tweeter

Kevlar® brand fibre cone FST midrange

Flowport™
Description 3-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency

1x ø130mm (5 in) woven Kevlar® cone FST midrange

2x ø130mm (5 in) paper/Kevlar® cone bass
Frequency range -6dB at 43Hz and 50kHz
Frequency response 69Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal over 60° arc
Vertical over 10° arc
Sensitivity 88dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)

<1% 100Hz - 22kHz

<0.5% 300Hz - 20kHz
Nominal impedance 8Ω (minimum 3.0Ω)
Crossover frequencies 350Hz, 4kHz
Crossover Filters Bass unit 3rd-order low pass

Midrange 2nd-order high-pass, 1st-order low-pass

Tweeter 1st-order high-pass
Recommended amplifier power 30W - 150W into 8Ω on unclipped programme
Max. recommended cable impedance 0.1Ω
Height: 960mm (37.8 in) not including feet
Width: 165mm (6.5 in) cabinet only, 252mm (9.9 in) over plinth
Depth: 277mm (10.9 in) cabinet, grille and terminals only, 298mm (11.7 in) over plinth
Net weight 19.5kg (43 lb)
Cabinet Real wood veneers: Grille:
Wengé Black
Rosenut Black
Painted finish: Grille:
Gloss black Black