DELTA PRO 15A 15" Professional Series Speaker

Recommended for professional audio in both sealed and vented enclosures. Ideal for full-range, mid/hi, and monitor wedges. Applications  Woofer | Midbass | Midrange | Pro Audio Box Type: Sealed | Vented | Horn Loading SpecificationsDownload Spec Sheet Download Cab Design SPECIFICATION Nominal Basket Diameter 15", 381 mm Nominal Impedance* 8 Ω Power Rating* Program Power 800 W Watts 400 W Resonance 42 Hz Usable Frequency Range 54 Hz - 4.2 kHz Sensitivity* 101.6 dB Magnet Weight 80 oz. Gap Height 0.375", 9.5 mm Voice Coil Diameter 2.5", 64 mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 42 Hz DC Resistance (Re) 5.71 Ω Coil Inductance (Le) 0.83m H Mechanical Q (Qms) 4.73 Electromagnetic Q (Qes) 0.44 Total Q (Qts) 0.4 Compliance Equivalent Volume (Vas) 243.5 liters / 8.6 cu.ft. Peak Diaphragm Displacement Volume (Vd) 368 cc Mechanical Compliance of Suspension (Cms) 0.24 mm/N BL Product (BL) 14.5 T-M Diaphragm Mass Inc. Airload (MMs) 61 grams Efficiency Bandwidth Product (EBP) 95 Maximum Linear Excursion (Xmax) 4.3 mm Surface Area of Cone (Sd) 856.3 cm2 Maximum Mechanical Limit (Xlim) 13.7 mm MOUNTING INFORMATION Recommended Enclosure Volume Sealed 28-42.5 liters / 1-1.5 cu.ft. Vented 57-133 liters / 2-4.7 cu.ft. Driver Volume Displaced 0.138 cu.ft. / 3.92 liters Overall Diameter 15.32", 389.1 mm Baffle Hole Diameter 14", 355.6 mm Front Sealing Gasket Yes Rear Sealing Gasket Yes Mounting Holes Diameter 0.28", 7.1mm Mounting Holes B.C.D. 14.56", 369.8mm Depth 6.06", 153.9 mm Net Weight 17 lbs, 7.71 kg Shipping Weight 19.1 lbs, 8.66 kgs MATERIALS OF CONSTRUCTION Coil Construction Aluminum voice coil Coil Former Polyimide former Magnet Composition Ferrite magnet Core Details Vented and extended core     Basket Materials Die-cast aluminum basket Cone Composition Paper cone Cone Edge Composition Cloth cone edge Dust Cap Composition Solid composition paper dust cap Frequency Response