Specification Sheet

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.
•
30 W Program Power
•
2” Nominal Diameter
•
8 Ω
2.0”, 50.8 mm
8 Ω
30 W
20 W
185 Hz
200 Hz – 20.0 kHz
83.8 dB
2.7 oz.
0.12”, 3 mm
0.64”, 16.2 mm
185 Hz
6.4 Ω
0.13 mH
3.06
0.94
0.72
0.01 cu.ft., 0.18 liters
2.10 cc
0.84 mm/N
2.64 T-M
0.88 grams
197.8
1.7 mm
12.37 cm2
2.2 mm
0.42–0.54 liters,
0.015–0.019 cu.ft.
0.37–0.57 liters,
0.013–0.02 cu.ft.
2.0 cu.in., 0.03 liters
2.75’’, 69.9 mm
2.13”, 54 mm
2.0’’, 50.8 mm
Yes
No
0.15’’, 3.8 mm
2.363’’, 59.9 mm
1.63”, 41.4 mm
0.40 lbs , 0.18 kg
(Sold in 4-packs) 2 lbs , 0.91 kg
American Standard series
4
4
4
4
20 Hz 50 100 200 500 1K 2K 5K 10K 20K
dBSPL
50
55
60
65
70
75
80
85
90
Ohm
6
7
8
9
10
20
30
Copper voice coil
Polyimide former
Ferrite magnet
Under Spider Venting
Pressed steel basket
Paper/Poly sandwich cone
Cloth cone edge
Poly dust cap
Recommended Enclosure Volume
Sealed
Vented
Driver Volume Displaced
Major Diameter
Flat to Flat Diameter
Baffle Hole Diameter
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter
Mounting Holes B.C.D.
Depth
Net Weight
Shipping Weight
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* See footnotes on page 2 for information regarding usable frequency range,
nominal impedance, power rating and sensitivity.
Nominal Basket Diameter
Nominal Impedance*
Power Rating*
Program Power
Nominal Power
Resonance
Usable Frequency Range
Sensitivity*
Magnet Weight
Gap Height
Voice Coil Diameter
SPECIFICATION
MATERIALS OF CONSTRUCTION
MOUNTING INFORMATION
Fs
Re
Le
Qms
Qes
Qts
Vas
Vd
Cms
BL
Mms
EBP
Xmax
Sd
Xlim
THIELE & SMALL PARAMETERS
FREQUENCY RESPONSE & IMPEDANCE CURVE
*
ENCLOSUREAPPLICATION
Sealed Box
Vented Box
Scoop Loading
Horn Loading
Full Range
Midrange
Midbass
Woofer
Subwoofer
Bass Guitar
ALPHA 2-8