OMEGA PRO-18A Professional Series
Recommended for professional audio as a woofer in vented enclosures. Also ideal for horn loading and scoops.
SPECIFICATION - Nominal Basket Diameter 18", 457.2 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 800 W / Music Program 1600 W
- Resonance 25 Hz
- Usable Frequency Range 40 Hz - 800 Hz
- Sensitivity 97
- Magnet Weight 109 oz.
- Gap Height 0.375", 9.53 mm
- Voice Coil Diameter 4", 101.6 mm
THIELE & Small Parameters - Resonant Frequency (fs) 25 Hz
- DC Resistance (Re) 5.20
- 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) 548.7 liters/19.4 cu. ft.
- Peak Diaphragm Displacement Volume 556 cc
- Mechanical Compliance of Suspension (Cms) 0.29 mm/N
- BL Product (BL) 18.8 T-M
- Diaphragm Mass inc. Airload (Mms) 138 grams
- Efficiency Bandwidth Product (EBP) 79
- Maximum Linear Excursion (Xmax) 4.8 mm
- Surface Area of Cone (Sd) 1159.0 cm²
- Maximum Mechanical Limit (Xlim) 16.0 mm
MOUNTING Information - Recommended Enclosure Volume
Sealed N/A
Vented 96-198 liters/ 3.4-7 cu.ft. - Overall Diameter 18", 457.2 mm
- Baffle Hole Diameter 16.56", 420.5 mm
- Front Sealing Gasket fitted as standard
- Rear Sealing Gasket fitted as standard
- Mounting Holes Diameter 0.28", 7.1 mm
- Mounting Holes B.C.D. 17.25", 438.2 mm
- Depth 8.15", 207 mm
MATERIALS of Construction - Copper voice coil
- Polyimide former
- Ferrite magnet
- Vented and extended core
- Die-cast aluminum basket
- Paper Cone
- Cloth cone edge
- Solid composition paper dust cap
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Data sheet - EOP18A [424,8 KB]
