Genuine Eminence |
ALPHA 2-8 - 2" SPEAKER |
THE EMINENCE ALPHA 2 2" SPEAKER IS GREAT FOR SYSTEMS TAHT NEED A SINGLE SPEAKER TO PLAY BOTH THE MIDRANGE AND HIGH FREQUENCIES! |
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WOOFER
MODEL |
ALPHA 2-8 |
SPECIFICATIONS |
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Nominal
Basket Diameter |
2"
/ 51mm |
Impedance |
8
ohms
|
RMS
Power Rating |
20
Watts |
Program Power Handling | 30 Watts |
Frequency
Response |
200Hz - 20kHz |
Sensitivity
(1W/1m) |
83.8dB |
Voice
Coil Diameter |
.64"
/ 16.2mm |
Rec. Enclosure Volume(Sealed) | .015 - .019cu. ft./.42 - .54 Liters |
Rec. Enclosure Volume(Vented) | .013 - .02cu. ft./.37 - .57 Liters |
MATERIALS |
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Basket | Pressed Steel |
Cone | Paper/Poly |
Surround | Cloth |
Dustcap | Poly |
Voice Coil | Copper |
Voice Coil Former | Polyimide |
Venting | Under Spider |
Magnet | Ferrite |
MOUNTING INFORMATION |
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Overall Diameter | 2.75" / 69.9mm |
Flat to Flat Diameter | 2.13" / 54mm |
Bolt Circle Diameter | 3.63" / 92.1mm |
Baffle Cutout Diameter | 2" / 50.8mm |
No. Of Mounting Holes | 4 |
Mounting Hole Diameter | 0.15" / 3.8mm |
Overall Depth | 1.63" / 41.4mm |
Magnet Weight | 2.7 oz. |
Net Weight | .4 lbs. / .18 kg. |
Shipping Weight - Pack of 4 | 2.0 lbs. /.91kg. |
THIELE-SMALL PARAMETERS |
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Resonant Frequency (fs) | 185 Hz |
Impedance
(Re) |
6.4 ohms |
Coil Inductance (Le) | 0.13mH |
Electromagnetic Q (Qes) |
.94 |
Mechanical Q (Qms) | 3.06 |
Total Q (Qts) |
.72 |
Compliance Equivalent Vol. (Vas) | .18 Liters/.01cu. ft. |
Voice Coil Overhang (Xmax) | 1.7mm |
Diaphragm Mass (Mms) | .88 Grams |
BL Factor (BL) | 2.64 T-M |
Surface Area of Cone (Sd) | .01237m2 |
FREQUENCY RESPONSE GRAPH |
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US Speaker, LLC