Midwest Speaker is an authorized Eminence distributor and we stock the majority of the Eminence product line. Please contact us if you need a different model.
New in Box. Price is for (2) one pair. Just change the quantity to order more.
* Perfectly suited for line arrays, car doors and side panels, and other tight fitting applications, the Alpha 4 is a very versatile 110 watt driver that can be used full range, as a midbass, or as a midrange. They can be stacked by themselves in a column for vocal applications, or in conjunction with a tweeter and a sub for compact, high performance PA or MI applications.
| Specification | |
| Nominal Basket Diameter | 4", 102 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | 110 W |
| Watts | 55 W |
| Resonance | 123 Hz |
| Usable Frequency Range | 105 Hz - 12 kHz |
| Sensitivity* | 88 dB |
| Magnet Weight | 10 oz. |
| Gap Height | 0.14", 3.7 mm |
| Voice Coil Diameter | 1", 25 mm |
Thiele & Small Parameters | |
| Resonant Frequency (fs) | 123 Hz |
| DC Resistance (Re) | 6.73 Ω |
| Coil Inductance (Le) | 0.28m H |
| Mechanical Q (Qms) | 6.83 |
| Electromagnetic Q (Qes) | 0.84 |
| Total Q (Qts) | 0.75 |
| Compliance Equivalent Volume (Vas) | 1.94 liters / 0.07 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 15 cc |
| Mechanical Compliance of Suspension (Cms) | 0.42 mm/N |
| BL Product (BL) | 4.94 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 4 grams |
| Efficiency Bandwidth Product (EBP) | 146 |
| Maximum Linear Excursion (Xmax) | 2.6 mm |
| Surface Area of Cone (Sd) | 57.7 cm2 |
| Maximum Mechanical Limit (Xlim) | 4.5 mm |
Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | 1.87-8.5 liters / 0.07-0.3 cu.ft. |
| Vented | 2.27-4.25 liters / 0.08-0.15 cu.ft. |
| Driver Volume Displaced | 0.012 cu.ft. / 0.33 liters |
| Overall Diameter | 4.57", 116.1 mm |
| Baffle Hole Diameter | 3.77", 95.8 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.15", 3.8mm |
| Mounting Holes B.C.D. | 4.25", 108mm |
| Depth | 2.31", 58.7 mm |
| Net Weight | 1.5 lbs, 0.68 kg |
| Shipping Weight | 1.9 lbs, 0.86 kgs |
Materials of Construction | |
| Coil Construction | Copper voice coil |
| Coil Former | Polyimide former |
| Magnet Composition | Ferrite magnet |
| Core Details | Non-Vented core |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Solid composition paper dust cap |
MADE IN THE USA.
FAST GROUND SHIPPING TO THE MAINLAND 48 UNITED STATES ONLY.
INTERNATIONAL SHIPPING TO CANADA WELCOME!!! Our shipping costs do not include your country's customs charges, taxes and other fees. Please do NOT ask us to send as a gift or to lower the declared value on the customs forms.
*Returns only accepted if speaker has NOT been mounted or soldered. Shipping costs are not refundable and buyer must pay for return shipping.