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EMINENCE ALPHA-12A

Manufacturer: EMINENCE

12-in Pro Mid Bass Speaker, 300W Max, 8 ohms w/Copper voice coil

SKU: ALPHA12A

Vendor: Thunderball Supplier

MSRP: $109.99

Availability: 11 in stock

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Overview
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* Nominal Basket Diameter: 12-in , 305 mm.
* Nominal Impedance: 8 Ohms.
* Power Rating:
* Watts: 150 W.
* Music Program: 300 W.
* Resonance: 49 Hz.
* Usable Frequency Range: 51 Hz - 4.3 kHz.
* Sensitivity: 95.6 dB.
* Magnet Weight: 20 oz..
* Gap Height: 0.25-in , 6.4 mm.
* Voice Coil Diameter: 1.5-in , 38 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 49 Hz.
* DC Resistance (Re): 6.3 Ohms.
* Coil Inductance (Le): 0.79m H.
* Mechanical Q (Qms): 6.53.
* Electromagnetic Q (Qes): 0.88.
* Total Q (Qts): 0.77.
* Compliance Equivalent Volume (Vas): 121.5 liters / 4.29 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 125 cc.
* Mechanical Compliance of Suspension (Cms): 0.32 mm/N.
* BL Product (BL): 8.5 T-M.
* Diaphragm Mass Inc.
Airload (MMs): 33 grams.
* Efficiency Bandwidth Product (EBP): 56.
* Maximum Linear Excursion (Xmax): 2.4 mm.
* Surface Area of Cone (Sd): 519.5 cm2.
* Maximum Mechanical Limit (Xlim): 6.6 mm.
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Recommended Enclosure Volume;
* Sealed: 17-22.7 liters / 0.6-0.8 cu.ft..
* Vented: 56.6-113.3 liters / 2-4 cu.ft..
* Driver Volume Displaced: 0.063 cu.ft.
/ 1.78 liters.
* Overall Diameter: 12.26-in , 311.4 mm.
* Baffle Hole Diameter: 11.06-in , 280.9 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.25-in , 6.4mm.
* Mounting Holes B.C.D.: 11.71-in , 297.4mm.
* Depth: 4.73-in , 120.1 mm.
* Net Weight: 5.3 lbs, 2.4 kg.
* Shipping Weight: 7.4 lbs, 3.36 kgs.
* Materials of Construction.
* Coil Construction: Copper voice coil.
* Coil Former: Polyimide former.
* Magnet Composition: Ferrite magnet.
* Core Details: Vented & extended core.
-----------------------------------.
* Basket Materials: Pressed steel basket.
* Cone Composition: Paper cone.
* Cone Edge Composition: Cloth cone edge.
* Dust Cap Composition: Solid composition felt dust cap.

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EMINENCE ALPHA-12A

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