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It has often been said that Eminence speakers are not expensive enough. A genuine American-built high performance transducer must surely cost considerably more — after all, most other premium speakers do.

The Eminence Alpha-15A is a versatile speaker which is suitable for vocal P.A. cabinets, bass combos and bass cabinets, guitar amps, keyboard amps, club speaker systems, home theater systems, stage monitors and background sound systems.

The Eminence Alpha-15A weighs just 6.7 pounds, has a sturdy pressed steel frame, 1.5" voice coil, and 200 watts of continuous power-handling, so this speaker is a great choice for stage monitor applications. 

The Alpha-15A frequency response is a wide 46 Hz - 3.5 kHz with resonant frequency of 41 Hz and 97 dB average sensitivity.  Please download the PDF spec sheet below for complete information including cabinet performance, frequency response graph, mounting info and Thiele & Small information

  All speakers are non-returnable items once the sealed box is opened.  To order, use the convenient online ordering here or call 1.800.753.6694.  Item # ALPHA15A.

Resources:
Download Alpha-15A PDF Spec Sheet: 8 Ohm.
Download Cabinet Design PDF: Alpha-15A.
Eminence's "Understanding Speaker Data" and Wiring Diagrams.

ALPHA 15A Quick Reference Specs

Nominal Basket Diameter
Impedance
Power Rating (continuous/peak)
Resonance
Usable Frequency Range
Sensitivity
Magnet Weight
Gap Height
Voice Coil Diameter
 

Mounting Information;
Recommended Enclosure Volume (sealed)
Recommended Enclosure Volume (vented)
Overall Diameter    
Baffle Hole Diameter  
Front Sealing Gasket
Rear Sealing Gasket 
Mounting Holes Diameter 
Mounting Holes B.C.D. 
Depth
Net Weight
Shipping Weight
 

Thiele-Small Parameters
Resonant Frequency (fs)
DC Resistance (Re)   
Coil Inductance (Le)
Mechanical Q (Qms)
Electromagnetic Q (Qes)
Total Q (Qts)
Compliance Equivalent Volume (Vas)
Peak Diaphragm Displacement Volume (Vd)
Mechanical Compliance of Suspension (Cms)
BL Product (BL)
Diaphragm Mass inc. Airload (Mms)
Efficiency Bandwidth Product (EBP)
Voice Coil Overhang (Xmax)
Surface Area of Cone (Sd)
Maximum Mechanical Limit (Xlim)

Materials of Construction:
Voice Coil Construction
Coil Former
Magnet Composition
Core Details
Basket Material
Cone Composition
Cone Edge Composition
Dust Cap

15", 381 mm
 8 W
200 / 400 watts
41Hz
46 Hz - 3.5 kHz
97 dB
25oz.
 0.25", 6.35 mm
1.5", 38.1 mm


71-85 liters/2.5-3 cu.ft.
 106-177 liters/3.75-6.25 cu.ft.
15.15", 384.8 mm
13.77", 349.6 mm
fitted as standard
fitted as standard
0.25", 6.4 mm
14.56", 369.9mm
5.83", 148 mm
6.7 lbs., 3 kg.
9 lbs., 4.1 kg.

41 Hz
5.88 ohms
0.84 mH
7.23
1.53
1.26
260 liters/9.2 cu. ft.
325 cc
0.25 mm/N
7.7 T-M
59 grams
27
3.8 mm
856.3 cm²
8.44 mm


Copper
Polyimide
Ferrite
Vented And Extended
Pressed Steel
Paper
Cloth
Solid Composition Paper