Eminence's Kilomax Pro-18A 18" speaker is designed to provide excellent performance in professional audio subwoofer and woofer applications in larger vented or sealed enclosures. The Kilomax Pro-18A's unique axially-located heat sink removes excessive thermal buildup from the critical voice coil area, which contributes to the driver's 1,250 watts RMS power handling capacity. Not recommended for horn loading or scoops. Made in the USA. 7-year manufacturer's warranty!
Kapton coil former
Copper voice coil
Extended core with Core Periphery Ventilation
Die-cast aluminum basket
Paper cone with cloth cone edge
Porous cloth top spider
Power Handling (RMS)1,250 Watts
Power Handling (max)2500 Watts
Frequency Response33 to 300 Hz
Sensitivity95.8 dB 1W/1m
Voice Coil Diameter4"
Magnet Weight109 oz.
Resonant Frequency (Fs)32 Hz
DC Resistance (Re)5.07 ohms
Voice Coil Inductance (Le)1.59 mH
Mechanical Q (Qms)10.15
Electromagnetic Q (Qes)0.49
Total Q (Qts)0.47
Compliance Equivalent Volume (Vas)11.71 ft.Â³
Mechanical Compliance of Suspension (Cms)0.18 mm/N
BL Product (BL)17.2 Tm
Diaphragm Mass Inc. Airload (Mms)143g
Maximum Linear Excursion (Xmax)10 mm
Surface Area of Cone (Sd)1159 cmÂ²
Materials of Construction
Voice Coil Wire MaterialCopper
Voice Coil FormerKaptonÂ® / Polyimide
Basket / Frame MaterialCast Aluminum
Overall Outside Diameter18"
Baffle Cutout Diameter16.56"
# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)