Eminence DELTA15LF4 15",1200w/2.5"vc/4ohms/ferrite

This item is brand-new, factory sealed.

This table charts the specifications for the DELTA-15LF-4 speaker
* Nominal Basket Diameter: 15-in , 381 mm.
* Nominal Impedance*: 4 Ohms.
* Power Rating*.
* Program Power: 1200 W.
* Watts: 600 W.
* Resonance: 40 Hz.
* Usable Frequency Range: 40 Hz - 2.2 kHz.
* Sensitivity*: 95 dB.
* Magnet Weight: 56 oz..
* Gap Height: 0.37-in , 9.5 mm.
* Voice Coil Diameter: 2.5-in , 64 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 40 Hz.
* DC Resistance (Re): 3.37 Ohms.
* Coil Inductance (Le): 0.76m H.
* Mechanical Q (Qms): 6.22.
* Electromagnetic Q (Qes): 0.53.
* Total Q (Qts): 0.49.
* Compliance Equivalent Volume (Vas): 253.93 liters / 8.97 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 521.2 cc.
* Mechanical Compliance of Suspension (Cms): 0.24 mm/N.
* BL Product (BL): 10.32 T-M.
* Diaphragm Mass Inc. Airload (MMs): 66 grams.
* Efficiency Bandwidth Product (EBP): 76.
* Maximum Linear Excursion (Xmax): 5.97 mm.
* Surface Area of Cone (Sd): 873 cm2.
* Maximum Mechanical Limit (Xlim): 16.5 mm.
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Recommended Enclosure Volume;
* Sealed:
52.95-97.69 liters / 1.87-3.45 cu.ft. .
* Vented:
75.04-154.33 liters / 2.65-5.45 cu.ft. .
* Driver Volume Displaced: 0.128 cu.ft. / 3.62 liters.
* Overall Diameter: 15.15-in , 384.8 mm.
* Baffle Hole Diameter: 13.87-in , 352.3 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.25-in , 6.4mm.
* Mounting Holes B.C.D.: 14.56-in , 369.8mm.
* Depth: 6.3-in , 160 mm.
* Net Weight: 12.8 lbs, 5.81 kg.
* Shipping Weight: 14.8 lbs, 6.71 kgs.
* Materials of Construction.
* Coil Construction: Copper voice coil.
* Coil Former: Polyimide former.
* Magnet Composition: Ferrite magnet.
* Core Details: Vented and extended 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.