Recommended for professional audio mid-range applications in a sealed cabinet, or as a mid-bass in a vented satellite enclosure.

SPECIFICATION
Nominal Basket Diameter	8", 203 mm
Nominal Impedance*	8 Ω
Power Rating*
Program Power	250 W
Watts	125 W
Resonance	73 Hz
Usable Frequency Range	58 Hz - 5 kHz
Sensitivity*	94 dB
Magnet Weight	20 oz.
Gap Height	0.25", 6.4 mm
Voice Coil Diameter	1.5", 38 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs)	73 Hz
DC Resistance (Re)	5.3 Ω
Coil Inductance (Le)	0.44m H
Mechanical Q (Qms)	4.6
Electromagnetic Q (Qes)	0.68
Total Q (Qts)	0.59
Compliance Equivalent Volume (Vas)	17.7 liters / 0.63 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	67 cc
Mechanical Compliance of Suspension (Cms)	0.28 mm/N
BL Product (BL)	7.8 T-M
Diaphragm Mass Inc. Airload (MMs)	17 grams
Efficiency Bandwidth Product (EBP)	107
Maximum Linear Excursion (Xmax)	3.2 mm
Surface Area of Cone (Sd)	210 cm2
Maximum Mechanical Limit (Xlim)	7.1 mm
MOUNTING INFORMATION
Recommended Enclosure Volume
Sealed	5-7 liters / 0.18-0.25 cu.ft.
Vented	16.7-25.5 liters / 0.59-0.9 cu.ft.
Driver Volume Displaced	0.02 cu.ft. / 0.58 liters
Overall Diameter	8.24", 209.3 mm
Baffle Hole Diameter	7.13", 181.1 mm
Front Sealing Gasket	Yes
Rear Sealing Gasket	Yes
Mounting Holes Diameter	0.22", 5.6mm
Mounting Holes B.C.D.	7.75", 196.9mm
Depth	3.25", 82.6 mm
Net Weight	4.3 lbs, 1.95 kg
Shipping Weight	5.1 lbs, 2.31 kgs
MATERIALS OF CONSTRUCTION
Coil Construction	Copper 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 ALPHA-8A 8" Speaker 125w 8 Ohms