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.
Speakers HPL Coaxials HF Compression drivers Horns
Specifications
Nominal Diameter | 460 mm (18 in) |
Nominal Impedance | 8 Ω |
Minumum Impedance | 6.5 Ω |
Power Handling |
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Nominal1 | 700 W |
Continuous Program2 | 1400 W |
Sensitivity (1W/1m)3 | 97 dB |
Frequency Range | |
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 |
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Thiele & Small Parameters4
Fs | 37 Hz |
Re | 5.3 Ω |
Qes | 0.39 |
Qms | 9.4 |
Qts | 0.37 |
Vas | 155 dm3 (5.5 ft3) |
Sd | 1134 cm2 (175.8 in2) |
η0 | 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) |
12 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.
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