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Eminence ALPHA 3: 3 inch Midrange / Full Range Driver

Price: $29.99 $19.99

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.
30 watts / 150-20kHz / .787″ voice coil
Available in 8, 16 or 32 ohms

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SKU: ALPHA 3 Categories: , , , ,

Description

Eminence ALPHA 3: 3 inch Midrange / Full Range Driver

Available in 8, 16 or 32 ohms

Price is for (1) one. Just change the quantity to order more.

* 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.

Click Here to Download 8 ohm PDF Spec Sheet
Click Here to Download 8 ohm PDF Cabinet Design

Click Here to Download 16 ohm PDF Spec Sheet
Click Here to Download 16 ohm PDF Cabinet Design

Click Here to Download 32 ohm PDF Spec Sheet
Click Here to Download 32 ohm PDF Cabinet Design

8 ohm Specification
Nominal Basket Diameter 3″, 76 mm
Nominal Impedance* 8 Ω
Power Rating*
Program Power 60 W
Watts 30 W
Resonance 118 Hz
Usable Frequency Range 150 Hz – 20 kHz
Sensitivity* 88.6 dB
Magnet Weight 8 oz.
Gap Height 0.1″, 2.5 mm
Voice Coil Diameter 0.787″, 20 mm

Thiele & Small Parameters
Resonant Frequency (fs) 118 Hz
DC Resistance (Re) 5.12 Ω
Coil Inductance (Le) 0.11m H
Mechanical Q (Qms) 7.94
Electromagnetic Q (Qes) 0.53
Total Q (Qts) 0.5
Compliance Equivalent Volume (Vas) 0.95 liters / 0.03 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 6.9 cc
Mechanical Compliance of Suspension (Cms) 0.84 mm/N
BL Product (BL) 3.93 T-M
Diaphragm Mass Inc. Airload (MMs) 2 grams
Efficiency Bandwidth Product (EBP) 220
Maximum Linear Excursion (Xmax) 2.4 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 liters / 0.03-0.05 cu.ft.
Vented 1.42-1.98 liters / 0.05-0.07 cu.ft.
Driver Volume Displaced 0.005 cu.ft. / 0.13 liters
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