Recommended for vented, sealed,
and horn loaded, professional audio
enclosures as a subwoofer. Also
great as a home hi-fi and automotive
subwoofer.
SPECIFICATION :
Nominal Basket Diameter 12" , 305 mm
Nominal Impedance* 6 ©
Power Rating* *
Watts 400 W
Music Program 800 W
Resonance 22 Hz
Usable Frequency Range 25 Hz - 0.1 kHz
Sensitivity* * * 89.2 dB
Magnet Weight 160 oz.
Gap Height 0.375" , 9.5 mm
Voice Coil Diameter 2.5" , 64 mm
EMINENCE LAB 12
THIELE & SMALL PARAMETERS :
Resonant Frequency ( fs) 22 Hz
DC Resistance ( Re) 4.29 ©
Coil Inductance ( Le) 1.48m H
Mechanical Q ( Qms) 13.32
Electromagnetic Q ( Qes) 0.39
Total Q ( Qts) 0.38
Compliance Equivalent Volume ( Vas) 125.2 liters / 4.42 cu.ft.
Peak Diaphragm Displacement Volume ( Vd) 659 cc
Mechanical Compliance of Suspension ( Cms) 0.35 mm/ N
BL Product ( BL) 15 T-M
Diaphragm Mass Inc. Airload ( MMs) 146 grams
Efficiency Bandwidth Product ( EBP) 56
Maximum Linear Excursion ( Xmax) 13 mm
Surface Area of Cone ( Sd) 506.7 cm2
Maximum Mechanical Limit ( Xlim) 22. mm
MOUNTING INFORMATION :
Recommended Enclosure Volume
Sealed 22.7-28.3 liters / 0.8-1 cu.ft.
Vented 45.3-101.9 liters / 1.6-3.6 cu.ft.
Driver Volume Displaced 0.109 cu.ft. / 3.09 liters
Overall Diameter 12.32" , 312.9 mm
Baffle Hole Diameter 10.98" , 278.9 mm
Front Sealing Gasket Yes
Rear Sealing Gasket N/ A
Mounting Holes Diameter 0.26" , 6.6mm
Mounting Holes B.C.D. 11.77" , 299mm
Depth 6.44" , 163.6 mm
Net Weight 22 lbs, 9.98 kg
Shipping Weight 23.8 lbs, 10.8 kgs
MATERIALS OF CONSTRUCTION :
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Double stacked 80 oz. ferrite magnets
Core Details Vented and extended core
Basket Materials 12-spoke die-cast aluminum basket
Cone Composition Kevlar-reinforced paper cone
Cone Edge Composition Foam cone edge
Dust Cap Composition Dual inverted dust caps