Eminence Delta Pro 12" 450A Speaker 375 W 8 Ohm

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Model: Eminence EDP12450A
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Nominal Basket Diameter 12", 305 mm
Nominal Impedance 8 ohms
Power Rating Watts 375 W
Music Program 750 W
Resonance 44 Hz
Usable Frequency Range 44 Hz - 4 kHz
Sensitivity 99.8
Magnet Weight 56 oz.
Gap Height 0.313", 7.9 mm
Voice Coil Diameter 2.5", 64 mm

THIELE & Small Parameters
Resonant Frequency (fs) 44 Hz
DC Resistance (Re) 5.04
Mechanical Q (Qms) 7.59
Electromagnetic Q (Qes) 0.39
Total Q (Qts) 0.37
Compliance Equivalent Volume (Vas) 144.66 liters, 5 cu.ft.
Peak Diaphragm Displacement Volume 271.5 cc
Mechanical Compliance of Suspension (Cms) 0.36 mm/N
BL Product (BL) 11.47 T-M
Diaphragm Mass inc. Airload (Mms) 36 grams
Efficiency Bandwidth Product (EBP) 115
Maximum Linear Excursion (Xmax) 5.1 mm
Surface Area of Cone (Sd) 532.4 cm2
Maximum Mechanical Limit (Xlim) 13.7 mm

MOUNTING Information
Recommended Enclosure Volume Sealed N/A
Vented Acceptable
Overall Diameter 12.38", 314.5 mm
Baffle Hole Diameter 11.07", 281.2 mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket fitted as standard
Mounting Holes Diameter 0.27", 6.9 mm
Mounting Holes B.C.D. 11.57", 293.9 mm
Depth 5.5", 139.7 mm

MATERIALS of Construction
Aluminum voice coil
Polyimide former
Ferrite magnet
Vented and extended core
Die-cast aluminum basket
Paper Cone Cloth cone edge
Paper dust cap