B&C 18SW115-4 18" Neodymium Subwoofer Speaker Driver 3400W 4 Ohm 4.5" Voice Coil
Features
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3400 W continuous program power capacity
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116 mm (4.5 in) split winding copper voice coil
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35 - 1500 Hz response
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96 dB sensitivity
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60 mm peak-to-peak excursion before damage
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Neodymium magnet allows a very high force factor and linear excursion
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Double silicone spider with optimized compliance
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Ventilated voice coil gap for reduced power compression
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Aluminium demodulating ring for very low distortion
Specifications
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Nominal Diameter 460 mm (18.0 in)
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Nominal Impedance 4 Ohm
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Minimum Impedance 4.1 Ohm
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Nominal Power Handling1 1700 W
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Continuous Power Handling2 3400 W
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Sensitivity3 96.0 dB
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Frequency Range 35 - 1500 Hz
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Voice Coil Diameter 116 mm (4.5 in)
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Winding Material Copper
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Former Material Glass Fibre
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Winding Depth 34.0 mm (1.33 in)
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Magnetic Gap Depth 14.0 mm (0.55 in)
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Flux Density 1.16 T
Design
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Surround Shape Triple Roll
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Cone Shape Radial
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Magnet Material Neodymium Inside Slug
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Spider Double Silicone
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Pole Design T-Pole
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Woofer Cone Treatment TWP Waterproof Both Sides
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Recommended Enclosure 150.0 dm3 (5.3 ft3)
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Recommended Tuning 35 Hz
Parameters
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Resonance Frequency 34 Hz
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Re 3.3
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Qes 0.31
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Qms 6.1
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Qts 0.3
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Vas 149.1 dm3 (5.27 ft3)
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Sd 1210.0 cm2 (187.6 in2)
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1.8 %
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Xmax 14.0 mm
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Xvar 16.0 mm
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Mms 304.0 g
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Bl 26.0 Txm
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Le 1.36 mH
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EBP 109 Hz
Mounting and Shipping Info
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Overall Diameter 460 mm (18.0 in)
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Bolt Circle Diameter 443 mm (17.44 in)
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Baffle Cutout Diameter 422.0 mm (16.6 in)
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Depth 242 mm (9.5 in)
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Flange and Gasket Thickness 16 mm (0.62 in)
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Air Volume Occupied by Driver 10.5 dm3 (0.37 ft3)
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Net Weight 11.9 kg (26.2 lb)
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Shipping Weight 13.7 kg (30.2 lb)
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Shipping Box 500x500x300 mm (19.69x19.69x11.81 in)
Service Kit
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RCK18SW1154
