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Specifications
Nominal Diameter 460 mm (18 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.5 Ω
Power Handling
(40 –400 Hz)
Nominal
1
700 W
Continuous Program
2
1400 W
Sensitivity (1W/1m)
3
97 dB
Frequency Range 40-2000 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 (5/16 in)
Flux Density 1.15 T
Also available in 4 Ω, data upon request
Thiele & Small Parameters
4
Fs 37 Hz
Re 5.3 Ω
Qes 0.39
Qms 9.4
Qts 0.37
Vas 155 dm
3
(5.5 ft
3
)
Sd 1134 cm
2
(175.8 in
2
)
η
0
3.2%
X max ± 8 mm
X Var ± 8 mm
Mms 155 g
Bl 24.1 T·m
Le 2.6 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 198 mm (7.8 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 13 kg (28.6 lb)
Shipping Weight 14.8 kg (32.6 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 PZB 46 | Woofer
Very long excursion 18” woofer with 1400W power handling for subwoofer
application where excellent reproduction of the lowest frequencies is
mandatory. A special 4" voice coil using proprietary high temperature
adhesives and an optimized magnet assembly guarantee very good LF
dynamic range, low power compression and a very low distortion figure. A
double spider with optimized compliance ensures excellent mechanical
stability even in the hardest working conditions.