Recommended for vented, sealed, and horn loaded, professional audio enclosures as a subwoofer. Also great as an automotive sub

SPECIFICATION
Nominal Basket Diameter	12", 305 mm
Nominal Impedance*	4 Ω
Power Rating*
Program Power	1000 W
Watts	500 W
Resonance	23 Hz
Usable Frequency Range	25 Hz - 0.1 kHz
Sensitivity*	88.9 dB
Magnet Weight	160 oz.
Gap Height	0.375", 9.5 mm
Voice Coil Diameter	2.5", 64 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs)	23 Hz
DC Resistance (Re)	3.11 Ω
Coil Inductance (Le)	1.09m H
Mechanical Q (Qms)	11.7
Electromagnetic Q (Qes)	0.34
Total Q (Qts)	0.33
Compliance Equivalent Volume (Vas)	128.31 liters / 4.53 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	659 cc
Mechanical Compliance of Suspension (Cms)	0.36 mm/N
BL Product (BL)	13.36 T-M
Diaphragm Mass Inc. Airload (MMs)	136 grams
Efficiency Bandwidth Product (EBP)	67
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	28.32-118.93 liters / 1-4.2 cu.ft.
Vented	39.64-141.59 liters / 1.4-5 cu.ft.
Driver Volume Displaced	0.109 cu.ft. / 3.09 liters
Overall Diameter	12.32", 312.9 mm
Baffle Hole Diameter	11.04", 280.4 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 aluminium basket
Cone Composition	Kevlar-reinforced paper cone
Cone Edge Composition	Foam cone edge
Dust Cap Composition	Dual inverted dust caps

Eminence Lab12C 12" 500 Watts

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