Description
18" Cast Frame Driver, 8 Ohm, 800 Watt
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!
Features:
- 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
Specifications:
- SPECIFICATION
- Nominal Basket Diameter: 18", 457.2mm
- Nominal Impedance*: 8 ohms
- Power Rating**
- Watts: 800W
- Music Program: 1600W
- Resonance: 25Hz
- Usable Frequency Range: 40Hz - 0.8kHz
- Sensitivity***: 97dB
- Magnet Weight: 109 oz.
- Gap Height: 0.37", 9.53mm
- Voice Coil Diameter: 4", 101.6mm
- THIELE & SMALL PARAMETERS
- Resonant Frequency (fs): 25Hz
- DC Resistance (Re): 5.2
- 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): 556cc
- Mechanical Compliance of Suspension (Cms): 0.29mm/N
- BL Product (BL): 18.8 T-M
- Diaphragm Mass Inc. Airload (MMs): 137.3 grams
- Efficiency Bandwidth Product (EBP): 79
- Maximum Linear Excursion (Xmax): 4.8mm
- Surface Area of Cone (Sd): 1159 cm2
- Maximum Mechanical Limit (Xlim): 16mm
- MOUNTING INFORMATION
- Recommended Enclosure Volume
- Sealed: N/a
- Vented: 96-198 liters / 3.4-7 cu.ft.
- Driver Volume Displaced: 403.9 cu.in. / 6.62 liters
- 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: 25.2 lbs, 11.4 kg
- Shipping Weight: 28.9 lbs, 13.1 kgs
- 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
- Dust Cap Composition: Solid composition paper dust cap