FEATURES:[ Nominal Basket Diameter 8 Zoll, 203.2mm [ Nominal Impedance* 8 ohms [ Power Rating** 250W [ Resonance 54Hz [ Usable Frequency Range*** 88Hz-20kHz [ Sensitivity 92 [ Magnet Weight 38 oz. [ Gap Height 0.312 Zoll, 7.92mm [ Voice Coil Diameter 2 Zoll, 50.8mm Thiele & Small Parameters[ Resonant Frequency (fs) 54Hz [ DC Resistance (Re) 5.53 [ Coil Inductance (Le) 0.96mH [ Mechanical Q (Qms) 7.67 [ Electromagnetic Q (Qes) 0.31 [ Total Q (Qts) 0.30 [ Compliance Equivalent Volume 34.9 liters (Vas) 34.9 liters / 1.2 cu. ft. [ Peak Diaphragm Displacement Volume 66cc [ Mechanical Compliance of Suspension 0.59mm/N [ BL Product (BL) 9.5 T-M [ Diaphragm Mass inc. Airload (Mms) 15 grams [ Efficiency Bandwidth Product (EBP) 174 [ Maximum Linear Excursion (Xmax) 3.2mm [ Surface Area of Cone (Sd) 205.9 cm2 [ Maximum Mechanical Limit (Xlim) 6.9mm Mounting Information[ Recommended Enclosure Volume [ Sealed 5.7-8.5 liters/0.2-0.3 cu.ft. [ Vented 8.5-17 liters/0.3-0.6 cu.ft. [ Overall Diameter 8.24 Zoll, 209.2mm [ Baffle Hole Diameter 7.13 Zoll, 181mm [ Front Sealing Gasket fitted as standard [ Rear Sealing Gasket fitted as standard [ Mounting Holes Diameter 0.22 Zoll, 5.5mm [ Mounting Holes B.C.D. 7.75 Zoll, 196.9mm [ Depth 3.5 Zoll, 89mm [ Net Weight 6.8 lbs., 3.1 kg [ Shipping Weight 7.5 lbs., 3.4 kg Materials of Construction[ Copper voice coil [ Polyimide former [ Ferrite magnet [ Extended core [ Pressed steel basket [ Paper Cone [ Cloth cone edge [ Screened cloth dust cap Poducer: ";
