B&C Speakers 12NW100-4 LF Drivers 12 inch NEO WOOFER 4 Ohm Neodymium Inside Slug Magnet 100 mm Copper Voice Coil 2000 Watts Power Capacity

2000 W continuous program power capacity || 100 mm (4 in) copper voice coil || 45 - 1500 Hz response || 92 dB sensitivity || FEA optimized Neodymium magnet assembly || Double silicone spider with optimized compliance || Ventilated voice coil gap for reduced power compression "

SPECIFICATIONS || Nominal Diameter :: 320 mm (12.0 in) || Nominal Impedance :: 4 ? || Minimum Impedance :: 5.0 ? || Nominal Power Handling 1 :: 1000 W || Continuous power handling 2 :: 2000 W || Sensitivity (1W/1m) 3 :: 92.0 dB || Frequency Range :: 45 - 1500 Hz || Voice Coil Diameter :: 100 mm (4.0 in) || Winding Material :: Copper || Former Material :: Glass Fibre || Winding Depth :: 25.0 mm (1.0 in) || Magnetic Gap Depth :: 12.0 mm (0.5 in) || Flux Density :: 1.2 T

DESIGN || Surround Shape :: Triple Roll || Cone Shape :: Radial || Magnet Material :: Neodymium Inside Slug || Spider :: Double Silicone || Pole Design :: T-Pole || Woofer Cone Treatment :: TWP || aterproof Both Sides || Recommended Enclosure :: 50.0 dm3 (1.77 ft3) || Recommended Tuning :: 50 Hz"

PARAMETERS || Resonance Frequency :: 44 Hz || Re :: 3.8 ? || Qes :: 0.21 || Qms :: 5.8 || Qts :: 0.2 || Vas :: 43.3 dm3 (1.53 ft3) || Sd :: 531.0 cm2 (82.3 in2) || ?? :: 1.69 % || Xmax :: ± 9.0 mm || Xvar :: ± 10.0 mm || Mms :: 120.0 g || Bl :: 24.38 Txm || Le :: 1.79 mH || EBP :: 209 Hz"

MOUNTING AND SHIPPING INFO || Overall Diameter :: 319 mm (12.5 in) || Bolt Circle Diameter :: 299 mm (11.8 in) || Baffle Cutout Diameter :: 281.0 mm (11.1 in) || Depth :: 137 mm (5.4 in) || Flange and Gasket Thickness :: 13 mm (0.5 in) || Air Volume Occupied by Driver :: 2.7 dm3 (0.09 ft3) || Net Weight :: 8.2 kg (18.0 lb) || Shipping Units :: 1 || Shipping Weight :: 9.1 kg (20.06 lb) || Shipping Box :: 360x360x200 mm (14.17x14.17x7.87 in)