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High-power 12" woofer in a shallow cast frame.
The LA12850 is a high power 12 inch woofer in a shallow cast frame designed to work in ultra-compact vented systems and allow very tight packaging in line arrays or other systems where overall depth is limited. 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.
- 12" low frequency driver
- 800W power rating
- 95.9dB sensitivity
- Designed to work in ultra-compact vented systems
- Ideal for tight packaging in line arrays or other systems where overall depth is limited
Perfect replacement for compact line array systems. Keep a spare on hand!
Professional LA12850 12" 800W Line Array PA Replacement Speaker
- Nominal Basket Diameter 12", 305 mm
Nominal Impedance* 8 Î
Watts 800 W
Music Program 1600 W
Resonance 46 Hz
Usable Frequency Range 63 Hz - 2.1 kHz
Sensitivity*** 95.9 dB
Magnet Weight 109 oz.
Gap Height 0.375", 9.5 mm
Voice Coil Diameter 4", 102 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 46 Hz
DC Resistance (Re) 5.87 Î
Coil Inductance (Le) 0.96m H
Mechanical Q (Qms) 12.73
Electromagnetic Q (Qes) 0.32
Total Q (Qts) 0.32
Compliance Equivalent Volume (Vas) 66.07 liters / 2.33 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 272.7 cc
Mechanical Compliance of Suspension (Cms) 0.16 mm/N
BL Product (BL) 19.51 T-M
Diaphragm Mass Inc. Airload (MMs) 73 grams
Efficiency Bandwidth Product (EBP) 142
Maximum Linear Excursion (Xmax) 5 mm
Surface Area of Cone (Sd) 545.4 cm2
Maximum Mechanical Limit (Xlim) 14 mm
Recommended Enclosure Volume
Vented 31.15-77.87 liters / 1.1-2.75 cu.ft.
Driver Volume Displaced 0.102 cu.ft. / 2.9 liters
Overall Diameter 12.32", 312.9 mm
Baffle Hole Diameter 11.08", 281.4 mm
Front Sealing Gasket Yes
Rear Sealing Gasket Yes
Mounting Holes Diameter 0.27", 6.8mm
Mounting Holes B.C.D. 11.69", 297mm
Depth 4.7", 119.4 mm
Net Weight 20.5 lbs, 9.3 kg
Shipping Weight 22.25 lbs, 10.09 kgs
MATERIALS OF CONSTRUCTION
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Core and Spider Land extended
Basket Materials Die-cast aluminum basket
Cone Composition Water resistant treated paper cone
Cone Edge Composition Paper cone edge
Dust Cap Composition Water resistant treated paper dust cap