Eminence Alpha 2 - 8 ohm 2" Fullrange Line Array Speaker (Single)

SKU: 587-011

Canadian Dollar Price:
Sale price$11.20
Stock:
In stock (17 units)

Description

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.

Manufacturer Spec Sheet

Example Cabinet Designs

Specifications

 
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", 3.1 mm
Voice Coil Diameter 0.64", 16 mm

T/S Parameters

 
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) 12.37 cm2
Maximum Mechanical Limit (Xlim) 2.2 mm

Mounting

 
Recommended Enclosure Volume
 
Sealed 0.42-0.54 liters / .015-.019 cu.ft.
Vented 0.37-0.57 liters / .013-.02 cu.ft.
Driver Volume Displaced 0.001 cu.ft. / 0.03 liters
Overall Diameter 2.75", 69.9 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", 50.8mm
Depth 1.63", 41.4 mm
Net Weight 0.4 lbs, 0.18 kg
Shipping Weight 2 lbs, 0.91 kgs

Construction

 
Coil Construction Copper
Coil Former Polyimide 
Magnet Composition Ferrite 
Core Details Solid with flux source cap
Basket Materials Pressed Steel
Cone Composition Paper/Poly Sandwich
Cone Edge Composition Cloth
Dust Cap Composition Poly

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