Eminence's Kappalite 3012LF-4 12" 4 ohm woofer provides powerful low frequency while keeping weight to a minimum. Featuring a cast aluminum basket, polyimide VC former, and treated paper cone with cloth accordion edge, this driver can handle the abuse of pro sound. The optimized neodymium motor greatly reduces weight while still delivering high efficiency with low distortion. Great for 2-way systems including floor monitors.
Neodymium magnet and cast aluminum frame keeps weight to a minimum
3" voice coil with extensive venting for increased power handling
9.1 mm Xmax provides more bass output
Surprisingly low free air resonance for a high efficiency driver
Power Handling (RMS)550 Watts
Power Handling (max)1100 Watts
Frequency Response41 to 2,000 Hz
Sensitivity92.9 dB 1W/1m
Voice Coil Diameter3"
Resonant Frequency (Fs)36 Hz
DC Resistance (Re)3.89 ohms
Voice Coil Inductance (Le)0.66 mH
Mechanical Q (Qms)8.38
Electromagnetic Q (Qes)0.32
Total Q (Qts)0.31
Compliance Equivalent Volume (Vas)3.79 ft.Â³
Mechanical Compliance of Suspension (Cms)0.26 mm/N
BL Product (BL)14.27 Tm
Diaphragm Mass Inc. Airload (Mms)72g
Maximum Linear Excursion (Xmax)9.1 mm
Surface Area of Cone (Sd)545.4 cmÂ²
Materials of Construction
Cone MaterialTreated Paper
Voice Coil Wire MaterialCopper
Voice Coil FormerKaptonÂ® / Polyimide
Basket / Frame MaterialCast Aluminum
Overall Outside Diameter12.38"
Baffle Cutout Diameter11.06"
Bolt Circle Diameter11.62"
# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)