Product Description

KAPPALITE™ 3012HO Speaker

Recommended for vented professional audio enclosures for full-range or as mids.

Nominal Basket Diameter 12″, 305mm
Nominal Impedance* 8 ohms
Power Rating**
Watts 400W
Music Program 800W
Resonance 52Hz
Usable Frequency Range 51Hz – 3.5kHz
Sensitivity*** 100.5dB
Magnet Weight 11 oz.
Gap Height 0.36″, 9.27mm
Voice Coil Diameter 3″, 76.2mm

Resonant Frequency (fs) 51.5Hz
DC Resistance (Re) 5.5
Coil Inductance (Le) 0.57mH
Mechanical Q (Qms) 8.39
Electromagnetic Q (Qes) 0.33
Total Q (Qts) 0.32
Compliance Equivalent Volume (Vas) 81.1 liters / 2.86 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 330cc
Mechanical Compliance of Suspension (Cms) 0.2mm/N
BL Product (BL) 15.9 T-M
Diaphragm Mass Inc. Airload (MMs) 46.9 grams
Efficiency Bandwidth Product (EBP) 157.4
Maximum Linear Excursion (Xmax) 6.2mm
Surface Area of Cone (Sd) 532.4 cm2
Maximum Mechanical Limit (Xlim) 12.5mm

Recommended Enclosure Volume
Sealed 28-76 liters / 1-2.7 cu.ft.
Vented 41-110 liters / 1.5-3.9 cu.ft.
Driver Volume Displaced 93.6 / 1.53 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 5.63″, 143mm
Net Weight 7.1 lbs, 3.22 kg
Shipping Weight 8.7 lbs, 3.95 kgs

Coil Construction Aluminum 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 Surround
Dust Cap Composition Treated paper dust cap