Eminence Professional DELTA PRO 12-450A 12" 375W PA Replacement Speaker  

Sku #J08101000000000

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Eminence

Lighter weight version of the Delta Pro 12.

Each Eminence Professional model can be identified by its cast aluminum Eminence chassis that is lightweight and strong. Aluminum does not conduct the magnetic field out of the gap, thereby making the motor strength higher and the stray magnetic field lower. Each chassis and all metal components are coated with an epoxy-acrylic finish using an in-house e-coat process. The thickness of that coating can be controlled to within 0.001"; critical when working with close tolerance transducer motor designs. Then front and rear sealing gaskets are added on each model to accommodate front or rear loading.

There are 26 unique models available in the Professional series. Each was designed with a specific application in mind. From heavy-duty subwoofers, low distortion woofers, and super high-power woofers to lightweight neodymium transducers in truncated frames for line arrays, there is an Eminence Professional model for your application. Each product includes a lot of Made in the USA pride.

Features
12" mid/bass driver
375W power rating
99.8dB sensitivity
Lighter version of the Delta Pro 12
Recommended as a woofer or mid/bass in vented enclosures

Perfect replacement for many portable PA cabinets. Keep a spare on hand!

 

Professional DELTA PRO 12-450A 12" 375W PA Replacement Speaker Specifications:

Nominal Basket Diameter 12", 305 mm
Nominal Impedance* 8 Î
Power Rating**
Watts 375 W
Music Program 750 W
Resonance 44 Hz
Usable Frequency Range 44 Hz - 4 kHz
Sensitivity*** 99.8 dB
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 Î
Coil Inductance (Le) 0.54m H
Mechanical Q (Qms) 7.59
Electromagnetic Q (Qes) 0.39
Total Q (Qts) 0.37
Compliance Equivalent Volume (Vas) 141.66 liters / 5 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 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 36.81-93.45 liters / 1.3-3.5 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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