High power driver recommended for pro audio in vented enclosures. Suited for full-range three -way boxes, bass guitar boxes, and small subwoofers.
SPECIFICATION Nominal Basket Diameter 18", 457.2 mm Nominal Impedance 8 ohms Power Rating Watts 1200 W / Music Program 2400 W Resonance 33.17 Hz Usable Frequency Range 39 Hz - 0.82 kHz Sensitivity 95.9 dB Magnet Weight 109 oz Gap Height 0.5", 12.7 mm Voice Coil Diameter 4", 101.6 mm
THIELE & Small Parameters Resonant Frequency (fs) 33.17 Hz DC Resistance (Re) 5.41 Coil Inductance (Le) 1.47 mH Mechanical Q (Qms) 14.02 Electromagnetic Q (Qes) 0.44 Total Q (Qts) 0.43 Compliance Equivalent Volume (Vas) 317.02 liters / 11.19 cu.ft. Peak Diaphragm Displacement Volume 927.2 cc Mechanical Compliance of Suspension 0.17 mm/N BL Product (BL) 19.9 T-M Diaphragm Mass inc. Airload (Mms) 139.52 grams Efficiency Bandwidth Product (EBP) 75.37 Maximum Linear Excursion (Xmax) 8 mm Surface Area of Cone (Sd) 1159 cm² Maximum Mechanical Limit (Xlim) 20.1 mm
MOUNTING Information Recommended Enclosure Volume Sealed N/A Vented 113.2-277.5 liters/4-9.8 cu.ft. Overall Diameter 18", 457.2 mm Baffle Hole Diameter 16.56", 420.62 mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.29", 7.36 mm Mounting Holes B.C.D. 17.25", 438.15 mm Depth 8.31", 211.07 mm
MATERIALS of Construction Copper voice coil Fiberglass Ferrite magnet Bumped Vented Extebded core Die-cast aluminum basket Water Resistant Treated Paper Cone Treated Cloth cone edge Water Resistant Treated paper dust cap