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", 381mm
  Impedance: 8 ohms
  Power Rating: 300W
  Resonance: 35Hz
  Usable Frequency Range: 45Hz - 3.7kHz
  Sensitivity: 98.2
  Magnet Weight: 34 oz.
  Gap Height: 0.312", 7.92mm
  Voice Coil Diameter: 2", 50.8mm
  
  Thiele-Small Parameters:
  Resonant Frequency (fs): 35Hz
  Impedance (Re): 6.32 ohms
  Coil Inductance (Le): 1.10mH
  Electromagnetic Q (Qes): 0.63
  Mechanical Q (Qms): 8.10
  Total Q (Qts): 0.58
  Compliance Equivalent Volume (Vas): 334.6 liters 11.8 cu. ft.
  Peak Diaphragm Displacement Volume (Vd): 330cc
  Mechanical Compliance of Suspension (Cms): 0.35mm/N
  BL Product (BL): 11.5 T-M
  Diaphragm Mass inc. Airload (Mms): 60 grams
  Efficiency Bandwidth Product (EBP): 56
  Voice Coil Overhang (Xmax): 4.0mm
  Surface Area of Cone (Sd): 823.7cm2
  Impedance at Resonance (Zmax): 88 ohms
  Maximum Mechanical Limit (Xmech): 11.6mm
  
  Materials of Construction:
  Copper voice coil for improved power handling and durability
  Polyimide former
  Ferrite Magnet
  Vented and extended core for increased power handling
  Premium pressed steel basket for maximum strength
  Paper cone
  Cloth cone edge
  Solid composition paper dust cap
  
  Mounting Information:
  Recommended Enclosure Volume (vented): 99 - 175.6 liters
  Overall Diameter: 15.15", 384.8mm
  Baffle Hole Diameter: 13.77", 349.6mm
  Front Sealing Gasket: fitted as standard
  Rear Sealing Gasket: fitted as standard
  Mounting Holes Diameter: 0.25", 6.4mm
  Mounting Holes B.C.D.: 14.56", 369.9mm
  Depth: 6.05", 154mm
  Shipping Weight: 10.8lbs., 4.9 kg.