2 inch Eminence ( 4-pack ) American Standard Series Replacement Speaker Eminence Speaker Basket
2 inch Eminence ( 4-pack ) American Standard Series Replacement Speaker Eminence Speaker Cone
2 inch Eminence ( 4-pack ) American Standard Series Replacement Speaker Eminence Speaker Frequency Response
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ALPHA 2-8 2" ( 4-pack ) American Standard Series Speaker

Regular price
$34.99
Sale price
$34.99
Regular price
$44.99
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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.

Applications 

Full Range Line Array | Pro Audio | Car Audio | Bass Guitar

Box Type: Sealed | Vented

Specifications

Download Spec Sheet     Download Cab Design
SPECIFICATION
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
THIELE & SMALL 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) 12.4 cm2
Maximum Mechanical Limit (Xlim) 2.2 mm
MOUNTING INFORMATION
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
MATERIALS OF CONSTRUCTION
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 ca


Frequency Response

response graph