Designed to produce ultra-low frequency response in small enclosures, Eminence's Definimax 4015ULF-8 15" subwoofer features a cast aluminum frame, 109 oz. magnet, and large 4" long throw voice coil. With Core Periphery Ventilation and a Kapton voice coil former, this driver can handle 1200 watts RMS with minimal power compression. Also, the water resistant paper cone and cloth surround make this an ideal driver for use in less than favorable environments.
Undercut pole piece with aluminum shorting ring and Core Periphery Ventilation
Long throw design capable of 7.3 mm Xmax for powerful low frequency output
Cast aluminum frame provides solid support for the 109 oz. magnet
Designed for optimum performance in small vented cabinets
Power Handling (RMS)1,200 Watts
Power Handling (max)2400 Watts
Frequency Response35 to 200 Hz
Sensitivity93 dB 1W/1m
Voice Coil Diameter4"
Magnet Weight109 oz.
Resonant Frequency (Fs)38 Hz
DC Resistance (Re)6.19 ohms
Voice Coil Inductance (Le)4.43 mH
Mechanical Q (Qms)10.27
Electromagnetic Q (Qes)0.35
Total Q (Qts)0.34
Compliance Equivalent Volume (Vas)3.59 ft.Â³
Mechanical Compliance of Suspension (Cms)0.1 mm/N
BL Product (BL)26.79 Tm
Diaphragm Mass Inc. Airload (Mms)173g
Maximum Linear Excursion (Xmax)7.3 mm
Surface Area of Cone (Sd)856.3 cmÂ²
Materials of Construction
Cone MaterialCoated Paper
Voice Coil Wire MaterialCopper
Voice Coil FormerKaptonÂ® / Polyimide
Basket / Frame MaterialCast Aluminum
Overall Outside Diameter15.21"
Baffle Cutout Diameter14"
Bolt Circle Diameter14.56"
# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)