Recommended for professional audio as a mid/hi or full range in a vented enclosure.

SPECIFICATION
Nominal Basket Diameter	12", 305 mm
Nominal Impedance*	8 Ω
Power Rating*
Program Power	900 W
Watts	450 W
Resonance	45 Hz
Usable Frequency Range	62 Hz - 4.2 kHz
Sensitivity*	99.3 dB
Magnet Weight	80 oz.
Gap Height	0.375", 9.5 mm
Voice Coil Diameter	3", 76 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs)	45 Hz
DC Resistance (Re)	5.41 Ω
Coil Inductance (Le)	0.77m H
Mechanical Q (Qms)	7.76
Electromagnetic Q (Qes)	0.28
Total Q (Qts)	0.27
Compliance Equivalent Volume (Vas)	112.1 liters / 3.96 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	166 cc
Mechanical Compliance of Suspension (Cms)	0.3 mm/N
BL Product (BL)	15.2 T-M
Diaphragm Mass Inc. Airload (MMs)	42 grams
Efficiency Bandwidth Product (EBP)	161
Maximum Linear Excursion (Xmax)	3.2 mm
Surface Area of Cone (Sd)	519.5 cm2
Maximum Mechanical Limit (Xlim)	11.5 mm
MOUNTING INFORMATION
Recommended Enclosure Volume
Sealed	N/a
Vented	34-62 liters / 1.2-2.2 cu.ft.
Driver Volume Displaced	0.09 cu.ft. / 2.55 liters
Overall Diameter	12.26", 311.4 mm
Baffle Hole Diameter	11", 279.4 mm
Front Sealing Gasket	Yes
Rear Sealing Gasket	Yes
Mounting Holes Diameter	0.25", 6.4mm
Mounting Holes B.C.D.	11.71", 297.4mm
Depth	5.63", 143 mm
Net Weight	14.9 lbs, 6.76 kg
Shipping Weight	17.9 lbs, 8.12 kgs
MATERIALS OF CONSTRUCTION
Coil Construction	Aluminium voice coil
Coil Former	Polyimide former
Magnet Composition	Ferrite magnet
Core Details	Vented core

Basket Materials	Pressed steel basket
Cone Composition	Paper cone
Cone Edge Composition	Cloth cone edge
Dust Cap Composition	Solid composition paper dust cap

Eminence KAPPA 12A 12" Speaker 450 Watts