Eminence ALPHA44 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 Mi

This item is brand-new, factory sealed.

This table charts the specifications for the Alpha 4-4 (Pair) speaker
* Nominal Basket Diameter: 4-in , 102 mm.
* Nominal Impedance*: 4 Ohms.
* Power Rating*.
* Program Power: 110 W.
* Watts: 55 W.
* Resonance: 120 Hz.
* Usable Frequency Range: 105 Hz - 10 kHz.
* Sensitivity*: 88 dB.
* Magnet Weight: 10 oz..
* Gap Height: 0.14-in , 3.7 mm.
* Voice Coil Diameter: 1-in , 25 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 120 Hz.
* DC Resistance (Re): 3.42 Ohms.
* Coil Inductance (Le): 0.18m H.
* Mechanical Q (Qms): 6.41.
* Electromagnetic Q (Qes): 0.7.
* Total Q (Qts): 0.63.
* Compliance Equivalent Volume (Vas): 1.76 liters / 0.06 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 15 cc.
* Mechanical Compliance of Suspension (Cms): 0.38 mm/N.
* BL Product (BL): 4.12 T-M.
* Diaphragm Mass Inc. Airload (MMs): 5 grams.
* Efficiency Bandwidth Product (EBP): 172.
* Maximum Linear Excursion (Xmax): 2.6 mm.
* Surface Area of Cone (Sd): 57.7 cm2.
* Maximum Mechanical Limit (Xlim): 4.5 mm.
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Recommended Enclosure Volume;
* Sealed:
1.84-4.53 liters / 0.07-0.16 cu.ft. .
* Vented:
3.96-7.08 liters / 0.14-0.25 cu.ft. .
* Driver Volume Displaced: 0.012 cu.ft. / 0.33 liters.
* Overall Diameter: 4.57-in , 116.1 mm.
* Baffle Hole Diameter: 3.77-in , 95.8 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.15-in , 3.8mm.
* Mounting Holes B.C.D.: 4.25-in , 108mm.
* Depth: 2.31-in , 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.
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* Basket Materials: Pressed steel basket.
* Cone Composition: Paper cone.
* Cone Edge Composition: Cloth cone edge.
* Dust Cap Composition: Solid composition paper dust cap.