ALPHA-10A Recommended for professional audio mid-bass applications in a small sealed cabinet. Click Here to Download 8 ohm PDF Spec Sheet Click Here to Download 8 ohm PDF Cabinet Design Specification Nominal Basket Diameter 10″, 254 mm Nominal Impedance* 8 Ω Power Rating* Program Power 300 W Watts 150 W Resonance 50 Hz Usable Frequency Range 57 Hz – 4.5 kHz Sensitivity* 95.6 dB Magnet Weight 20 oz. Gap Height 0.25″, 6.4 mm Voice Coil Diameter 1.5″, 38 mm Thiele & Small Parameters Resonant Frequency (fs) 50 Hz DC Resistance (Re) 5.31 Ω Coil Inductance (Le) 0.66m H Mechanical Q (Qms) 5.21 Electromagnetic Q (Qes) 0.66 Total Q (Qts) 0.59 Compliance Equivalent Volume (Vas) 82.2 liters / 2.9 cu.ft. Peak Diaphragm Displacement Volume (Vd) 114 cc Mechanical Compliance of Suspension (Cms) 0.46 mm/N BL Product (BL) 7.5 T-M Diaphragm Mass Inc. Airload (MMs) 22 grams Efficiency Bandwidth Product (EBP) 76 Maximum Linear Excursion (Xmax) 3.2 mm Surface Area of Cone (Sd) 355.4 cm2 Maximum Mechanical Limit (Xlim) 9.1 mm Mounting Information Recommended Enclosure Volume Sealed 8.5-11.3 liters / 0.3-0.4 cu.ft. Vented 28.3-53.8 liters / 1-1.9 cu.ft. Driver Volume Displaced 0.034 cu.ft. / 0.95 liters Overall Diameter 10.11″, 256.8 mm Baffle Hole Diameter 9.13″, 231.9 mm Front Sealing Gasket Yes Rear Sealing Gasket Yes Mounting Holes Diameter 0.23″, 5.8mm Mounting Holes B.C.D. 9.6″, 243.8mm Depth 3.9″, 99.1 mm Net Weight 4.5 lbs, 2.04 kg Shipping Weight 5.6 lbs, 2.54 kgs Materials of Construction Coil Construction Copper voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented and extended core Basket Materials Pressed steel basket Cone Composition Paper cone Cone Edge Composition Cloth cone edge Dust Cap Composition Solid composition paper dust cap