Product Description

KAPPALITE™ 3012LF Speaker

Recommended for professional audio and bass in a vented enclosure.

Nominal Basket Diameter 12″, 305mm
Nominal Impedance* 8 ohms
Power Rating**
Watts 450W
Music Program 900W
Resonance 37Hz
Usable Frequency Range 46Hz – 2kHz
Sensitivity*** 95.5dB
Magnet Weight 11 oz.
Gap Height 0.36″, 9.27mm
Voice Coil Diameter 3″, 76.2mm

Resonant Frequency (fs) 37.02Hz
DC Resistance (Re) 5.6
Coil Inductance (Le) 0.98mH
Mechanical Q (Qms) 6.94
Electromagnetic Q (Qes) 0.34
Total Q (Qts) 0.32
Compliance Equivalent Volume (Vas) 106.65 liters / 3.77 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 496cc
Mechanical Compliance of Suspension (Cms) 0.26mm/N
BL Product (BL) 16.7 T-M
Diaphragm Mass Inc. Airload (MMs) 72.4 grams
Efficiency Bandwidth Product (EBP) 109.7
Maximum Linear Excursion (Xmax) 9.1mm
Surface Area of Cone (Sd) 545.4 cm2
Maximum Mechanical Limit (Xlim) 14.5mm

Recommended Enclosure Volume
Sealed 23-59 liters / 1.3-3 cu.ft.
Vented 37-85 liters / 1.3-3 cu.ft.
Driver Volume Displaced 95.3 / 1.56 liters
Overall Diameter 12.38″, 314.45mm
Baffle Hole Diameter 11.06″, 280.9mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.28″, 7.1mm
Mounting Holes B.C.D. 11.62″, 295.2mm
Depth 6″, 152.4mm
Net Weight 7.6 lbs, 3.45 kg
Shipping Weight 9.2 lbs, 4.17 kgs

Coil Construction Copper Voice coil
Coil Former Kapton
Magnet Composition Neodymium magnet
Core Details Vented core

Basket Materials Die-cast aluminum basket
Cone Composition Treated Paper Cone
Cone Edge Composition Sealed Cloth Edge
Dust Cap Composition Treated paper dust cap