FEATURES:[ Nominal Basket Diameter 12 Zoll, 304.8mm [ Nominal Impedance* 8 ohms [ Power Rating** 250W [ Resonance 43Hz [ Usable Frequency Range*** 66Hz-20kHz* [ Sensitivity 96.7 [ Magnet Weight 38 oz. [ Gap Height 0.312 Zoll, 7.92mm [ Voice Coil Diameter 2 Zoll, 50.8mm Thiele & Small Parameters [ Resonant Frequency (fs) 43Hz [ DC Resistance (Re) 5.57 [ Coil Inductance (Le) 1.01mH [ Mechanical Q (Qms) 6.69 [ Electromagnetic Q (Qes) 0.51 [ Total Q (Qts) 0.48 [ Compliance Equivalent Volume (Vas) 161 liters / 5.7 cu. ft. [ Peak Diaphragm Displacement Volume (Vd) 186cc [ Mechanical Compliance of Suspension (Cms) 0.40mm/N [ BL Product (BL) 10.0 T-M [ Diaphragm Mass inc. Airload (Mms) 34 grams [ Efficiency Bandwidth Product (EBP) 84 [ Maximum Linear Excursion (Xmax) 3.5mm [ Surface Area of Cone (Sd) 532.4 cm2 [ Maximum Mechanical Limit (Xlim) 10.4mm Mounting Information [ Recommended Enclosure Volume [ Sealed 42.5-28 liters/1-1.5 cu.ft. [ Vented 37-71 liters/1.3-2.5 cu.ft. [ Overall Diameter 12.03 Zoll, 305.5mm [ Baffle Hole Diameter 10.95 Zoll, 278.1mm [ Front Sealing Gasket fitted as standard [ Rear Sealing Gasket fitted as standard [ Mounting Holes Diameter 0.25 Zoll, 6.4mm [ Mounting Holes B.C.D. 11.59 Zoll, 294.3mm [ Depth 4.47 Zoll, 114mm [ Net Weight 7.8 lbs., 3.5 kg [ Shipping Weight 10 lbs., 4.5 kg Materials of Construction [ Copper voice coil [ Polyimide former [ Ferrite magnet [ Extended core [ Pressed steel basket [ Paper Cone [ Cloth cone edge [ Screened cloth dust capPoducer: ";
