SPEAKER EMINENCE DELTA-15A

SPECIFICATION Nominal Basket Diameter 15 " , 381mm Nominal Impedance* 8 ohms Power Rating Watts 400W Music Program 800W Resonance 40Hz Usable Frequency Range 48Hz-4kHz Sensitivity* * * 100 Magnet Weight 56 oz. Gap Height 0.375 " , 9.53mm Voice Coil Diameter 2.5 " , 63.5mm THIELE & SMALL PARAMETERS Resonant Frequency ( fs) 40Hz DC Resistance ( Re) 6.3 Coil Inductance ( Le) 0.64mH Mechanical Q ( Qms) 8.05 Electromagnetic Q ( Qes) 0.57 Total Q ( Qts) 0.53 Compliance Equivalent Volume ( Vas) 270.7 liters / 9.56 cu.ft Peak Diaphragm Displacement Volume ( Vd) 233cc Mechanical Compliance of Suspension ( Cms) 0.26mm/ N BL Product ( BL) 13.2 T-M Diaphram Mass inc. Airload ( Mms) 62 grams Efficiency Bandwidth Product ( EBP) 70 Maximum Linear Excursion ( Xmax) 2.7mm Surface Area of Cone ( Sd) 864.6 cm2 Maximum Mechanical Limit ( Xlim) 11.1mm MOUNTING INFORMATION Recommended Enclosure Sealed 37-42.5 liters/ 1.3-1.5 cu.ft. Vented 82-161.4 liters/ 2.9-5.7cu.ft. Overall Diameter 15.15 " , 384.8mm 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 6.05 " , 154mm Net Weight 12.3 lbs., 5.6 kg Shipping Weight 14.4 lbs., 6.5 kg MATERIALS OF CONSTRUCTION Coil Construction Aluminum voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented core Basket Materials Pressed steel basket Cone Composition Paper Cone Cone Edge Composition Cloth cone edge Dustcap Composition Solid composition paper dust cap