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Specifications
Nominal Diameter 460 mm (18 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.2 Ω
Power Handling
(40 –400 Hz)
Nominal
1
700 W
Continuous Program
2
1400 W
Sensitivity (1W/1m)
3
96.5 dB
Frequency Range 30-2000 Hz
Voice Coil Diameter 100 mm (4 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 21 mm (13/16 in)
Magnetic Gap Depth 8 mm (9/16 in)
Flux Density 1.1 T
Also available in 4 Ω, data upon request
Thiele & Small Parameters
4
Fs 28 Hz
Re 5.3 Ω
Qes 0.33
Qms 7.6
Qts 0.31
Vas 386 dm
3
(13.6 ft
3
)
Sd 1134 cm
2
(175.8 in
2
)
η
0
2.4%
X max ± 6 mm
X Var ± 5 mm
Mms 153 g
Bl 20.8 T·m
Le 2.4 mH
Mounting and Shipping Information
Overall Diameter 460 mm (18 in)
Bolt Circle Diameter 440 mm (17.3 in)
Baffle Cutout Diameter 422 mm (16.6 in)
Depth 191 mm (7.5 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 10.3 kg (22.7 lb)
Shipping Weight 12.1 kg (26.6 lb)
Shipping Box 520x520x240 mm
(20.5x20.5x9.4 in)
1
2 hours test made with continuous pink noise signal (6 dB crest factor) within the
specified range. Power calculated on rated minimum impedance. Loudspeaker in
free air.
2
Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3
Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance. Average
SPL from 200 to 2000Hz.
4
Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-
ditioning test.
18 PS 46 | Woofer
Long excursion 18" woofer with 1400W power handling for subwoofer
applications where reproduction of the lowest frequencies is mandatory.
A special 4" voice coil using proprietary high temperature adhesives and
an optimized magnet assembly guarantee robust LF output, low power
compression and a very low distortion figure. A bass-reflex enclosure is
recommended for best performance.