The Eminence Omega Pro-18A 18" cast frame speaker is equipped with a large 4" diameter voice coil and a 109 oz. ceramic ferrite magnet with bumped back plate. The Omega Pro-18A is an ideal driver choice for vented subwoofer enclosures as well as horn loading and scoops. Made in the USA. 7-year manufacturer's warranty!
Two-layer, 27ga. copper voice coil with Kapton coil former
Vented and extended pole piece
Die-cast aluminum basket
Paper cone with cloth cone edge
Solid composition paper dust cap
Power Handling (RMS)800 Watts
Power Handling (max)1600 Watts
Frequency Response40 to 800 Hz
Sensitivity97 dB 1W/1m
Voice Coil Diameter4"
Magnet Weight109 oz.
Resonant Frequency (Fs)25 Hz
DC Resistance (Re)5.20 ohms
Voice Coil Inductance (Le)1.67 mH
Mechanical Q (Qms)8.18
Electromagnetic Q (Qes)0.32
Total Q (Qts)0.31
Compliance Equivalent Volume (Vas)19.38 ft.³
Mechanical Compliance of Suspension (Cms)0.29 mm/N
BL Product (BL)18.8 Tm
Diaphragm Mass Inc. Airload (Mms)137g
Maximum Linear Excursion (Xmax)4.8 mm
Surface Area of Cone (Sd)1,159 cm²
Materials of Construction
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton / Polyimide
Basket / Frame MaterialCast Aluminum
Overall Outside Diameter18"
Baffle Cutout Diameter16.56"
# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)