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ALPHA 2-8 - 2" SPEAKER |
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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 |
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SPECIFICATIONS |
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Nominal
Basket Diameter |
2"
/ 51mm |
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Impedance |
8
ohms
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RMS
Power Rating |
20
Watts |
| Program Power Handling | 30 Watts |
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Frequency
Response |
200Hz - 20kHz |
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Sensitivity
(1W/1m) |
83.8dB |
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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 |
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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 |
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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. |
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THIELE-SMALL PARAMETERS |
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| Resonant Frequency (fs) | 185 Hz |
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Impedance
(Re) |
6.4 ohms |
| Coil Inductance (Le) | 0.13mH |
| Electromagnetic Q (Qes) |
.94 |
| Mechanical Q (Qms) | 3.06 |
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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 |
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FREQUENCY RESPONSE GRAPH |
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US Speaker, LLC