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Speaker - Eminence® American, 8", Alpha 8MRA, 125W, 8Ω
Special Order Item
American Standard Series 8" speaker. Recommended for pro audio and bass guitar applications as a midrange. Sealed basket makes this woofer independent of enclosure design
RoHS Compliant
| Baffle Hole Diameter | 7.13 in | |
| Basket Material | Pressed steel basket with closed back | |
| Coil Construction | copper voice coil | |
| Coil Former | Polyimide former | |
| Coil Inductance (le) | 0.34 mH | |
| Cone Composition | Paper cone | |
| Cone Edge Composition | Paper cone edge | |
| Core Details | Vented core | |
| D.C. Resistance (Re) | 7.32 Ω | |
| Depth | 3.25 in. | |
| Driver Volume Displaced | 0.58 liters | |
| Dust Cap Composition | Solid composition paper dust cap | |
| Efficiency Bandwidth Product (ebp) | 247 | |
| Electrical Q Factor (Qes) | 2.08 | |
| Equivalent Acoustic Volume (VAS) | 0.8 liters | |
| Force Factor (BxL) | 8.9 Wb/m | |
| Front Sealing Gasket | Yes | |
| Gap Height | 6.4 mm | |
| Linear Displacement, maximum (XMAX) | 1.6 mm | |
| Magnet Composition | Ferrite | |
| Magnet Weight | 20 oz. | |
| Mechanical Compliance (CMS) | 0.01 mm/N | |
| Mechanical Limit, maximum (XLIM) | 3 mm | |
| Mechanical Moving Mass (MMS) | 7 g | |
| Mechanical Q Factor (QMS) | 4.48 | |
| Mounting Hole Bolt Circle Diameter | 197.6 mm | |
| Mounting Hole Diameter | 5.6mm | |
| Nominal Basket Diameter | 8 in. | |
| Nominal Impedance | 8 Ω | |
| Overall Diameter | 208.8 mm | |
| Peak Diaphragm Displacement Volume (vd) | 0 cm3 | |
| Power Rating | 125 W | |
| Program Power Rating | 250 W | |
| Rear Sealing Gasket | Yes | |
| Resonance | 514 Hz | |
| Resonance Frequency (ƒS) | 514 Hz | |
| Sensitivity | 100.9 dB | |
| Surface Area Of Cone (sd) | 205.9 cm2 | |
| Total Q Factor (QTS) | 1.42 | |
| Usable Frequency Range | 400 Hz - 4.8 kHz | |
| Voice Coil Diameter | 1.5 in. |
| Packaging Dimensions | 9.25 in. × 9.25 in. × 4.125 in. | |
| Weight (Packaging) | 5.1 lbs. |
 Cabinet Design Specifications | All Models |
| Specification Sheet | All Models |
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