Pro Audio

American Standard Series

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Alpha 3-32

A truly versatile compact full-range driver perfectly suited for tight fitting pro audio line array and column array applications. An 8.3 oz ferrite magnet used in conjunction with an internal neodymium bucking magnet increases the sensitivity and extends the response out to 20kHz. The highly pressed cone sandwiches paper with a layer of water-resistant polypropylene for increased stiffness and lower distortion.

Suggested Retail  $34.99
Your Price  $14.99

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This table charts the specifications for the Alpha 3-32 speaker
Speaker Detail
Specification
Nominal Basket Diameter3", 76 mm
Nominal Impedance*32 Ω
Power Rating*
Program Power60 W
Watts30 W
Resonance117 Hz
Usable Frequency Range150 Hz - 20 kHz
Sensitivity*88.2 dB
Magnet Weight8 oz.
Gap Height0.08", 2 mm
Voice Coil Diameter0.79", 20 mm
Thiele & Small Parameters
Resonant Frequency (fs)117 Hz
DC Resistance (Re)22.4 Ω
Coil Inductance (Le)0.23m H
Mechanical Q (Qms)5.87
Electromagnetic Q (Qes)0.85
Total Q (Qts)0.74
Compliance Equivalent Volume (Vas)0.98 liters / 0.04 cu.ft.
Peak Diaphragm Displacement Volume (Vd)7.4 cc
Mechanical Compliance of Suspension (Cms)0.86 mm/N
BL Product (BL)6.46 T-M
Diaphragm Mass Inc. Airload (MMs)2 grams
Efficiency Bandwidth Product (EBP)138
Maximum Linear Excursion (Xmax)2.6 mm
Surface Area of Cone (Sd)28.6 cm2
Maximum Mechanical Limit (Xlim)4 mm
Mounting Information
Recommended Enclosure Volume
Sealed 1.13-1.7 liters / 0.04-0.06 cu.ft.
Vented 1.13-1.98 liters / 0.04-0.07 cu.ft.
Driver Volume Displaced0.005 cu.ft. / 0.13 liters
Major Diameter3.98", 101.1 mm
Flat to Flat Diameter3.24", 82.3 mm
Baffle Hole Diameter3.04", 77.2 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.16", 4.1mm
Mounting Holes B.C.D.3.63", 92.1mm
Depth1.76", 44.6 mm
Net Weight0.9 lbs, 0.41 kg
Shipping Weight1.1 lbs, 0.5 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerPolyimide former
Magnet CompositionFerrite magnet
Core DetailsVented / Flux source cap
  
Basket MaterialsPressed steel
Cone CompositionPaper / Poly sandwich cone
Cone Edge CompositionPoly cone edge
Dust Cap CompositionPoly dust cap
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Footnotes

Multiple units exceed published ratings evaluated under EIA 426A specification while tested in a free-air, non-temperature-controlled environment. Multiple compression drivers exceeded published ratings evaluated under EIA-426A or AES specification while mounted on Eminence’s H290, H290S, or H2EA horn in a non-temperature-controlled environment.

The average output across the usable frequency range when applying 1W/1m into the nominal impedance. i.e: 2.83V/8Ω, 4V/16Ω. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft. x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Yamaha P3500S amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges). Compression drivers were tested using a 2ft x 2ft baffle built into the wall with horn front mounted.

BETA 8CX, 10CX and 12CX are coaxial speakers with tweeter sold separately. The data for these coaxial woofers was calculated with the ASD:1001 driver screwed into the woofer, but not active.

Prices, specifications and product cosmetics are subject to change without notice.