Eminence Beta 15A 15" 300W Stamped Frame Woofer

The Eminence Beta 15A Subwoofer Speaker is recommended for professional audio as a woofer in sealed and vented enclosures. Eminence recommends the Beta 15A as a replacement speaker for the Nady FWA15 speaker cabinet, and as an alternative to the Eminence Alpha 15A for the Kustom KPC15M & KPC215H, and the Eminence Deltalite II 2515 for the Peavey PR15P speaker cabinets.

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• Specifications:Nominal Basket Diameter: 15", 381mmImpedance: 8 ohmsPower Rating: 300WResonance: 35HzUsable Frequency Range: 45Hz - 3.7kHzSensitivity: 98.2Magnet Weight: 34 oz.Gap Height: 0.312", 7.92mmVoice Coil Diameter: 2", 50.8mmThiele-Small Parameters:Resonant Frequency (fs): 35HzImpedance (Re): 6.32 ohmsCoil Inductance (Le): 1.10mHElectromagnetic Q (Qes): 0.63Mechanical Q (Qms): 8.10Total Q (Qts): 0.58Compliance Equivalent Volume (Vas): 334.6 liters 11.8 cu. ft.Peak Diaphragm Displacement Volume (Vd): 330ccMechanical Compliance of Suspension (Cms): 0.35mm/NBL Product (BL): 11.5 T-MDiaphragm Mass inc. Airload (Mms): 60 gramsEfficiency Bandwidth Product (EBP): 56Voice Coil Overhang (Xmax): 4.0mmSurface Area of Cone (Sd): 823.7cm2Impedance at Resonance (Zmax): 88 ohmsMaximum Mechanical Limit (Xmech): 11.6mmMaterials of Construction: Copper voice coil for improved power handling and durabilityPolyimide formerFerrite MagnetVented and extended core for increased power handlingPremium pressed steel basket for maximum strengthPaper coneCloth cone edgeSolid composition paper dust capMounting Information: Recommended Enclosure Volume (vented): 99 - 175.6 litersOverall Diameter: 15.15", 384.8mmBaffle Hole Diameter: 13.77", 349.6mmFront Sealing Gasket: fitted as standardRear Sealing Gasket: fitted as standardMounting Holes Diameter: 0.25", 6.4mmMounting Holes B.C.D.: 14.56", 369.9mmDepth: 6.05", 154mmShipping Weight: 10.8lbs., 4.9 kg.