Eminence Speaker OMEGA PRO-18C

Replacement Woofer

Item ID: 2980

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Eminence Speaker OMEGA PRO-18C Features:

Voice coil diameter: 4", 101.6mm
Magnet weight: 109 oz.
Power rating: 800W
Sensitivity: 97
Nominal Basket Diameter: 18", 457.2 mm
Nominal Impedance: 8 ohms
Power Rating: Watts, 800W; Music Program, 1600W
Resonance: 25Hz
Usable Frequency Range: 40Hz-800Hz
Sensitivity: 97
Magnet Weight: 109 oz.
Gap Height: 0.375", 9.53mm
Voice Coil Diameter: 4", 101.6mm
Thiele & Small Parameters
Resonant Frequency (fs): 25Hz
DC Resistance (Re): 5.20
Coil Inductance (Le): 1.67mH
Mechanical Q (Qms): 8.18
Electromagnetic Q (Qes): 0.32
Total Q (Qts) : 0.31
Compliance Equivalent Volume (Vas): 548.7 liters /19.4 cu. ft.
Peak Diaphragm Displacement Volume (Vd): 55cc
Mechanical Compliance of Suspension (Cms): 0.29mm/N
BL Product (BL): 18.8 T-M
Diaphram Mass inc. Airload (Mms): 138 grams
Efficiency Bandwidth Product (EBP): 79
Maximum Linear Excursion (Xmax): 4.8mm
Surface Area of Cone (Sd): 1159.0 cm2
Maximum Mechanical Limit (Xlim): 13.2mm
Mounting Information
Recommended Enclosure: Sealed, Vented 96-198 liters/3.4-7 cu.ft.
Overall Diameter: 18", 457.2mm
Baffle Hole Diameter: 16.56", 420.5mm
Front Sealing Gasket: fitted as standard
Rear Sealing Gasket: fitted as standard
Mounting Holes Diameter: 0.28", 7.1mm
Mounting Holes B.C. D.: 17.25", 438.2mm
Depth: 8.15", 207mm
Net Weight: 25.2lbs, 11.4 kg
Shipping Weight: 28.9 lbs., 13.1 kg
Materials of Construction
Coil Construction: Copper 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
Dustcap Composition: Solid composition paper dust cap

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Reviewed by: Carlos from Anaheim on 2/15/2013

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