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Eminence - DELTA PRO 12-450-4 - 12", 450 W, 4Ω, Ferrite

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SKU: P-A-DELTAPRO12-450-4
Item ID: 039973
Price: $119.99
Note: special order items require additional lead time. See our page on special order items.
Note: this is a special order item.
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Type
PA
Ohms
4 Ohms

Special Order Item

The Delta Pro 12-450 is a lighter weight version of the Delta Pro 12. Recommended as a woofer or mid/bass in vented enclosures. Also makes a perfect replacement in many portable PA cabinets.

SPECIFICATION
Nominal Basket Diameter 12", 305 mm
Nominal Impedance* 4 Ω
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 0.3125", 7.9 mm
Voice Coil Diameter 2.5", 64 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 45 Hz
DC Resistance (Re) 3.65 Ω
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
MOUNTING INFORMATION
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", 314.5 mm
Baffle Hole Diameter 11.07", 281.2 mm
Front Sealing Gasket Yes
Rear Sealing Gasket Yes
Mounting Holes Diameter 0.27", 6.9mm
Mounting Holes B.C.D. 11.57", 293.9mm
Depth 5.5", 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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