Eminence SIGMA PRO 18A-2 Recommended for professional audio as a woofer in vented enclosures.
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SPECIFICATION |
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Nominal Basket Diameter |
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Nominal Impedance* |
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Power Rating* |
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Program Power |
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Watts |
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Resonance |
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Usable Frequency Range |
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Sensitivity* |
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Magnet Weight |
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Gap Height |
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Voice Coil Diameter |
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THIELE & SMALL PARAMETERS |
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Resonant Frequency (fs) |
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DC Resistance (Re) |
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Coil Inductance (Le) |
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Mechanical Q (Qms) |
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Electromagnetic Q (Qes) |
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Total Q (Qts) |
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Compliance Equivalent Volume (Vas) |
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Peak Diaphragm Displacement Volume (Vd) |
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Mechanical Compliance of Suspension (Cms) |
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BL Product (BL) |
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Diaphragm Mass Inc. Airload (MMs) |
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Efficiency Bandwidth Product (EBP) |
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Maximum Linear Excursion (Xmax) |
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Surface Area of Cone (Sd) |
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Maximum Mechanical Limit (Xlim) |
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MOUNTING INFORMATION |
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Recommended Enclosure Volume |
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Sealed |
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Vented |
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Driver Volume Displaced |
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Overall Diameter |
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Baffle Hole Diameter |
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Front Sealing Gasket |
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Rear Sealing Gasket |
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Mounting Holes Diameter |
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Mounting Holes B.C.D. |
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Depth |
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Net Weight |
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Shipping Weight |
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MATERIALS OF CONSTRUCTION |
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Coil Construction |
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Coil Former |
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Magnet Composition |
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Core Details |
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Basket Materials |
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Cone Composition |
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Cone Edge Composition |
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Dust Cap Composition |
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