Eminence Definimax - 4018LFA, 18" Speaker 800Watt/8Ohm, 36Hz - 200Hz

Recommended for professional audio and bass as a low distortion sub-woofer in single or multi-driver designs.

SPECIFICATION Nominal Basket Diameter 18", 457.2 mm Nominal Impedance 8 ohms Power Rating Watts 800 W / Music Program 1600 W Resonance 32Hz Usable Frequency Range 36 Hz -200 Hz Sensitivity 95 Magnet Weight 109 Gap Height 0.375", Voice Coil Diameter 4", 101.6 mm

THIELE & Small Parameters Resonant Frequency (fs) 32 Hz DC Resistance (Re) 6.19 Coil Inductance (Le) 4.78 mH Mechanical Q (Qms) 10.38 Electromagnetic Q (Qes) 0.36 Total Q (Qts) 0.35 Compliance Equivalent Volume (Vas) 237.9 liters / 8.4 cu. ft. Peak Diaphragm Displacement Volume 939 cc Mechanical Compliance of Suspension (Cms) 0.12 mm/N BL Product (BL) 27.0 Diaphragm Mass inc. Airload (Mms) 211 grams Efficiency Bandwidth Product (EBP) 89 Maximum Linear Excursion (Xmax) 7.9 mm Surface Area of Cone (Sd) 1188.0 cm² Maximum Mechanical Limit (Xlim) 15.9 mm

MOUNTING Information Recommended Enclosure Volume Sealed N/A Vented 125-210 Overall Diameter 18", Baffle Hole Diameter 16.57", Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.28", 7 mm Mounting Holes B.C.D. 17.25", 438.2 mm Depth 8.13", 206.4 mm

MATERIALS of Construction Copper voice coil Polyimide former Ferrite magnet Undercut with copper shorting ring and Core Periphery Ventilation Die-cast aluminum basket Acrylic Wetlook Paper Cone Cloth cone edge Acrylic wetlook paper dust cap