The Omega Pro 18 is designed for all high power bass applications. It has a 4 in. polyamide-imide coated 2-layer 27 ga. copper voice coil, kapton coil former, 109 oz. ferrite magnet, vented and extended core, paper cone with cloth edge, and a paper dust cap. It is only available in 8 ohms.
Features:
Kapton coil former for increased rigidity and thermal protection
Polyamide-imide coated 2-layer, 27ga., copper voice coil for improved power handling and durability
Ferrite Magnet
Vented and extended core for increased power handling
Die-cast aluminum basket for rigidity
Paper cone
Cloth cone edge
Solid composition paper dust cap
Professionals Go For Gold!
It has often been said that Eminence professional loudspeakers are not expensive enough. A genuine American-built cast-frame high performance transducer must surely cost considerably more
Technical Info
Nominal Basket Diameter: 18 in., 457.2mm
Impedance: 8W
Power Rating: 800Wrms
Resonance: 28Hz
Usable Frequency Range: 25Hz - 2kHz
Magnet Weight: 109oz.
Gap Height: 0.375 in., 9.52mm
Voice Coil Diameter: 4.0 in., 101.6mm
Mounting Information
Recommended Enclosure Volume (vented): 62 - 82 liters 2.2 - 2.9 cu. ft.
Overall Diameter: 18 in., 457.2mm
Baffle Hole Diameter: 16.56 in., 420mm
Front Sealing Gasket: fitted as standard
Rear Sealing Gasket: fitted as standard
Mounting Holes Diameter: 0.25 in., 6.4mm
Mounting Holes B.C.D.: 17.25 in., 438.2mm
Depth: 8.15 in., 207mm
Shipping Weight: 30lbs., 13.6 kg.
Thiele-Small Parameters
Resonant Frequency (fs): 28Hz
Impedance (Re): 5.1W
Coil Inductance (Le): 1.67mH
Electromagnetic Q (Qes): 0.25
Mechanical Q (Qms): 5.53
Total Q (Qts): 0.24
Compliance Equivalent Volume (Vas): 354 liters 12.49 cu. ft.
Peak Diaphragm Displacement Volume (Vd): 635cc
Mechanical Compliance of Suspension (Cms): 0.19mm/N
BL Product (BL): 25 T-M
Diaphragm Mass inc. Airload (Mms): 171 grams
Equiv. Resistance of Mechanical Suspension Loss (Rms): 5.46N*sec/M
Efficiency Bandwidth Product (EBP): 114
Voice Coil Overhang (Xmax): 4.8mm
Surface Area of Cone (Sd): 1159cm2
Impedance at Resonance (Zmax): 97 ohmd
Maximum Mechanical Limit (Xmech): 32.0mm
Eminence response curves are measured under the following controlled test conditions:
All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance
LMS using 0.25 in. supplied microphone (software calibrated) mounted 1m from wall/baffle
2ft. X 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum defraction
Hafler P1500 Trans-Nova amplifier
2700 cu. ft. chamber with fiberglass on all 6 surfaces (three with custom-made wedges)
Call for 4 equal payments on most orders over $395. Installment plans available only by phone. 
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All instrument parts cannot be returned once opened due to the possibility they have been used. This includes all guitar, amplifier, and turntable parts. 
