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Eminence Alpha 3-32 - 3" 30W 32 Ohm
The Eminence Alpha 3-32 is a versatile, compact, full-range driver perfectly suited for tight-fitting pro audio line array and column array applications. With a program power rating of 70 watts, this 3" driver utilizes an 8.3 oz ferrite magnet with an internal neodymium bucking magnet for increased sensitivity and extends the response to 20kHz. The highly pressed cone sandwiches paper with a layer of water-resistant polypropylene for increased stiffness and lower distortion.
Specification
- Nominal Basket Diameter 76 mm, 3"
- Nominal Impedance* 32 ohms
- Power Rating*
- Program Power 70 W
- Watts 35 W
- Resonance 117 Hz
- Usable Frequency Range 150 Hz - 20 kHz
- Sensitivity* 88 dB
- Magnet Weight 8 oz.
- Gap Height 2 mm, 0.08"
- Voice Coil Diameter 20 mm
Thiele & Small Parameters
- Resonant Frequency (fs) 117 Hz
- DC Resistance (Re) 22.43 ohms
- 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 / 0.03 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) 220
- 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 0.85-1.42 litres / 0.03-0.05 cu.ft.
- Vented 1.42-1.98 litres / 0.05-0.07 cu.ft.
- Driver Volume Displaced 0.005 cu.ft. / 0.13 litres
- Major Diameter 3.98", 101.1 mm
- Flat to Flat Diameter 3.24", 82.3 mm
- Baffle Hole Diameter 3.04", 77.2 mm
- Front Sealing Gasket Yes
- Rear Sealing Gasket Yes
- Mounting Holes Diameter 0.16", 4.1mm
- Mounting Holes B.C.D. 3.63", 92.1mm
- Depth 1.76", 44.6 mm
- Net Weight 0.9 lbs, 0.41 kg
- Shipping Weight 1.1 lbs, 0.5 kgs
Materials of Construction
- Coil Construction Copper voice coil
- Coil Former Polyimide former
- Magnet Composition Ferrite magnet
- Core Details Vented / Flux source cap
- Basket Materials Pressed steel
- Cone Composition Paper / Poly sandwich cone
- Cone Edge Composition Poly cone edge
- Dust Cap Composition Poly dust cap
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Eminence Alpha 3-32 - 3" 30W 32 Ohm PDF data sheet (396 kb)
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