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Eminence - ALPHA 2-8 - 2 Pair

Currently Out Of Stock

New to the American Standard Series is the Alpha 2 full range driver. Ideal for tight fitting column and line array applications, the Alpha 2 features a 0.64" copper voice coil and 2.7 oz. ferrite magnet. With under spider venting and a flux source cap, this 8 ohm driver lets the heat out while containing the magnetic flux, which is critical for multi-unit designs packed tightly together. Rated at 30 watts program power, the Alpha 2 has a wide usable frequency range of 200 Hz - 20 kHz.

Nominal Basket Diameter 2", 51 mm
Nominal Impedance* 8 Ω
Power Rating*
Program Power 30 W
Watts 20 W
Resonance 186 Hz
Usable Frequency Range 200 Hz - 20 kHz
Sensitivity* 83.8 dB
Magnet Weight 3 oz.
Gap Height 0.12", 3 mm
Voice Coil Diameter 0.64", 16 mm
Resonant Frequency (fs) 186 Hz
DC Resistance (Re) 6.4 Ω
Coil Inductance (Le) 0.13m H
Mechanical Q (Qms) 3.06
Electromagnetic Q (Qes) 0.94
Total Q (Qts) 0.72
Compliance Equivalent Volume (Vas) 0.18 liters / 0.01 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 2.1 cc
Mechanical Compliance of Suspension (Cms) 0.84 mm/N
BL Product (BL) 2.64 T-M
Diaphragm Mass Inc. Airload (MMs) 1 grams
Efficiency Bandwidth Product (EBP) 198
Maximum Linear Excursion (Xmax) 1.7 mm
Surface Area of Cone (Sd) 12.4 cm2
Maximum Mechanical Limit (Xlim) 2.2 mm
Recommended Enclosure Volume
Sealed N/a
Vented N/a
Driver Volume Displaced 0.071 cu.ft. / 2 liters
Overall Diameter 2.13", 54.1 mm
Baffle Hole Diameter 2", 50.8 mm
Front Sealing Gasket Yes
Rear Sealing Gasket N/A
Mounting Holes Diameter 0.15", 3.8mm
Mounting Holes B.C.D. 2.36", 59.9mm
Depth 0", 0 mm
Net Weight 0.4 lbs, 0.18 kg
Shipping Weight 2 lbs, 0.91 kgs
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition
Core Details Solid / Flux source cap

Basket Materials Pressed steel basket
Cone Composition
Cone Edge Composition Paper/Poly Sandwich Cone
Dust Cap Composition Poly dust cap