EMINENCE DELTAPRO124504

12-in 450W RMS to MAX 900W 2.5-in Voice Coil Diameter 4 Ohms Impedance Ferrite Magnet
SKU: DELTAPRO124504
Availability: Out of stock

This table charts the specifications for the DELTA PRO 12-450-4 speaker
* Nominal Basket Diameter: 12-in , 305 mm.
* Nominal Impedance*: 4 Ohms.
* Power Rating*.
* Program Power: 900 W.
* Watts: 450 W.
* Resonance: 45 Hz.
* Usable Frequency Range: 45 Hz - 3.8 kHz.
* Sensitivity*: 97.4 dB.
* Magnet Weight: 56 oz..
* Gap Height: 0.31-in , 7.9 mm.
* Voice Coil Diameter: 2.5-in , 64 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 45 Hz.
* DC Resistance (Re): 3.65 Ohms.
* Coil Inductance (Le): 0.45m H.
* Mechanical Q (Qms): 7.97.
* Electromagnetic Q (Qes): 0.41.
* Total Q (Qts): 0.39.
* Compliance Equivalent Volume (Vas): 137.73 liters / 4.86 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 271.5 cc.
* Mechanical Compliance of Suspension (Cms): 0.35 mm/N.
* BL Product (BL): 9.51 T-M.
* Diaphragm Mass Inc.
Airload (MMs): 36 grams.
* Efficiency Bandwidth Product (EBP): 110.
* Maximum Linear Excursion (Xmax): 5.2 mm.
* Surface Area of Cone (Sd): 532.4 cm2.
* Maximum Mechanical Limit (Xlim): 13.7 mm.
-----------------------------------
Recommended Enclosure Volume;
* Sealed:
N/a .
* Vented:
33.97-99.1 liters / 1.2-3.5 cu.ft.
.
* Driver Volume Displaced: 0.079 cu.ft.
/ 2.25 liters.
* Overall Diameter: 12.38-in , 314.5 mm.
* Baffle Hole Diameter: 11.07-in , 281.2 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.27-in , 6.9mm.
* Mounting Holes B.C.D.: 11.57-in , 293.9mm.
* Depth: 5.5-in , 139.7 mm.
* Net Weight: 11.7 lbs, 5.31 kg.
* Shipping Weight: 14 lbs, 6.35 kgs.
* Materials of Construction.
* Coil Construction: Aluminum voice coil.
* Coil Former: Polyimide former.
* Magnet Composition: Ferrite magnet.
* Core Details: Vented and extended core.
-----------------------------------.
* Basket Materials: Die-cast aluminum basket.
* Cone Composition: Paper cone.
* Cone Edge Composition: Cloth cone edge.
* Dust Cap Composition: Paper dust cap.

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