18-in Woofer w/3400 W continuous program power capacity 116 mm 4.5 in four layer aluminum voice c

This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, less heat, higher sensitivity, higher power handling, lower distortion and better overall performance. Features a 40mm long, 4.5 inch diameter 116mm Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 98 dB sensitivity, and over 14.0mm of Xvar, this high energy subwoofer is a significant step forward from similar models in the B And C range. 18.0 inches Diameter. Continuous power handling: 3400 W. Voice coil diameter: 4.5 in 116 mm. Magnet material: Neodymium Inside Slug. Nominal Diameter: 460 mm 18.0 in. Nominal Impedance: 8 Oms. Minimum Impedance: 7.0 Ohms. Nominal Power Handling: 1700 W. Continuous power handling: 3400 W. Sensitivity 1W/1m: 98.0 dB. Frequency Range: 30 - 500 Hz. Voice Coil Diameter: 116 mm 4.5 in. Winding Material: Aluminium. Former Material: Glass Fibre. Winding Depth: 40.0 mm 1.57 in. Magnetic Gap Depth: 14.0 mm 0.55 in. Flux Density: 0.8 TDesign. Surround Shape: Triple Roll. Cone Shape: Radial. Magnet Material: Neodymium Inside Slug. Spider: Double Silicone. Pole Design: T-Pole. Woofer Cone Treatment: TWP Waterproof Both Sides. Recommended Enclosure: 100.0 dm3 3.53 ft3. Recommended Tuning: 40 HzParameters4. Resonance Frequency: 30 Hz. Overall Diameter: 460 mm 18.11 in. Bolt Circle Diameter: 442 mm 17.4 in. Baffle Cutout Diameter: 422.0 mm 16.61 in. Depth: 248 mm 9.76 in. Flange and Gasket Thickness: 16 mm 0.63 in. Air Volume Occupied by Driver: 10.0 dm3 0.35 ft3. Net Weight: 12.0 kg 26.46 lb. Shipping Units: 1. Shipping Weight: 13.6 kg 29.98 lb. Shipping Box: 500x495x275 mm 19.69x19.49x10.83 inService Kit. Recone kit: RCK18DS1158