EMINENCE EJ1240

12-in 40W 1.75-in Voice Coil Diameter 8 Ohms Impedance Alnico Magnet
SKU: EJ1240
Availability: Out of stock

This table charts the specifications for the EJ-1240 speaker
* Nominal Basket Diameter: 12-in , 305 mm.
* Nominal Impedance*: 8 Ohms.
* Power Rating*.
* Program Power: N/A.
* Watts: 40 W.
* Resonance: 75 Hz.
* Usable Frequency Range: 80 Hz - 5 kHz.
* Sensitivity*: 100.7 dB.
* Magnet Weight: 35 oz..
* Gap Height: 0.31-in , 8 mm.
* Voice Coil Diameter: 1.75-in , 44 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 75 Hz.
* DC Resistance (Re): 7 Ohms.
* Coil Inductance (Le): 0.6m H.
* Mechanical Q (Qms): 20.09.
* Electromagnetic Q (Qes): 0.54.
* Total Q (Qts): 0.53.
* Compliance Equivalent Volume (Vas): 71.19 liters / 2.51 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 64.4 cc.
* Mechanical Compliance of Suspension (Cms): 0.19 mm/N.
* BL Product (BL): 12.08 T-M.
* Diaphragm Mass Inc.
Airload (MMs): 24 grams.
* Efficiency Bandwidth Product (EBP): 140.
* Maximum Linear Excursion (Xmax): 1.24 mm.
* Surface Area of Cone (Sd): 519.5 cm2.
* Maximum Mechanical Limit (Xlim): N/A.
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Recommended Enclosure Volume;
* Sealed: Acceptable.
* Vented: Acceptable.
* Driver Volume Displaced: 0.079 cu.ft.
/ 2.24 liters.
* Overall Diameter: 12.17-in , 309.1 mm.
* Baffle Hole Diameter: 11.13-in , 282.7 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.24-in , 6.1mm.
* Mounting Holes B.C.D.: 11.75-in , 298.5mm.
* Depth: 6.25-in , 158.8 mm.
* Net Weight: 8.4 lbs, 3.81 kg.
* Shipping Weight: 10.2 lbs, 4.63 kgs.
* Materials of Construction.
* Coil Construction: Copper voice coil.
* Coil Former: Paper former.
* Magnet Composition: Alnico magnet.
* Core Details: Non-vented core.
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* Basket Materials: Pressed steel basket.
* Cone Composition: Paper cone.
* Cone Edge Composition: Paper cone edge.
* Dust Cap Composition: Zurette dust cap.

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