Eminence American Standard Kappa-15A 15" Pro Audio Speaker, 450 Watts at 8 Ohms

Power Rating Watts 450W Music Program 900W Resonance 33Hz Usable Frequency Range 52Hz-2.3kHz Sensitivity 100.5 Magnet Weight 80 ounce Gap Height 0.375", 9.53mm Voice Coil Diameter 3", 76.2mm THIELE and SMALL PARAMETERS Resonant Frequency (FS) 33Hz DC Resistance (Re) 5.22 Coil Inductance (Le) 1.05mH Mechanical Q (QMS) 8.90 Electromagnetic Q (QES) 0.33 Total Q (QTS) 0.32 Compliance Equivalent Volume (Vas) 321.3 liters / 11.35 cu.ft. Peak Diaphragm Displacement Volume (VD) 343cc Mechanical Compliance of Suspension (CMS) 0.31mm/N BL Product (BL) 15.7 T-M Diaphragm Mass Inc. Air load (Mms) 76 grams Efficiency Bandwidth Product (EBP) 98 Maximum Linear Excursion (XMAX) 4.0mm Surface Area of Cone (SD) 856.3 cm2 Maximum Mechanical Limit (XLIM) 11.6mm MOUNTING INFORMATION Recommended Enclosure Sealed Vented 45-113 liters/1.6-4 cu.ft. Overall Diameter 15.16", 384.9mm Baffle Hole Diameter 13.77", 349.6mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.25", 6.4mm Mounting Holes B.C. D. 14.56", 369.9mm Depth 6.13", 156mm Net Weight 17.6 lbs., 8 kg Shipping Weight 19.8 lbs., 9 kg MATERIALS OF CONSTRUCTION Coil Construction Copper voice coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented core Basket Materials Pressed steel basket Cone Composition Paper Cone Edge Composition Cloth cone edge Dust cap Composition Solid composition paper dust cap