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Eminence Beta 12A 12in 8 Ohm 250W speaker


 Product Description

Superior Eminence Quality

The Eminence Beta-12A is perfectly suited as an upgrade to your existing 12" enclosure, or to be mounted in a planned enclosure build. The Eminence Beta-12A means you can get that incredible Eminence sound and quality in any of your desired cabinets.


Speaker Specifications

  • Nominal Basket Diameter: 12"/305mm
  • Nominal Impedance: 8 Ohms
  • Power Rating:
    • Program Power: 500W
    • Watts: 250W
  • Resonance: 47Hz
  • Usable Frequency Range: 43Hz - 3.8kHz
  • Sensitivity: 98dB
  • Magnet Weight: 38oz.
  • Gap Height: 0.31"/7.9mm
  • Voice Coil Diameter: 2"/51mm

Thiele & Small (T/S) Paramaters

  • Resonant Frequency (fs): 47Hz
  • DC Resistance (Re): 5 Ohms
  • Coil Inductance (Le): 0.64m H
  • Mechanical Q (Qms): 6
  • Electromagnetic Q (Qes: 0.5
  • Total Q (Qts): 0.46
  • Compliance Equivalent Volume (Vas): 120.1 litres/4.24 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd): 237cc
  • Mechanical Compliance of Suspension (Cms): 0.29mm/N
  • Bl Product (BL): 10.8 T-M
  • Diaphragm Mass Inc. Airload (MMs): 40g
  • Efficiency Bandwidth Product (EBP): 94
  • Maximum Linear Excursion (Xmax): 4.4mm
  • Surface Area of Cone (Sd): 538.9cm2
  • Maximum Mechanical Limit (Xlim): 11mm

Mounting Information

  • Recommended Enclosure Volume:
    • Sealed: 25.5-35.4 litres/0.9-1.25 cu.ft.
    • Vented: 36.8-139 litres/1.3-4.9 cu.ft.
  • Driver Volume Displaced: 2 litres/0.071 cu.ft.
  • Overall Diameter: 12.03"/305.6mm
  • Baffle Hole Diameter: 11.07"/281.2mm
  • Front Sealing Gasket: Yes
  • Rear Sealing Gasket: Yes
  • Mounting Holes Diameter: 0.25"/6.4mm
  • Mounting Holes BCD: 11.59"/294.4mm
  • Depth: 4.57"/116.1mm
  • Net Weight: 7.5lbs/3.4kg
  • Shipping Weight: 9.7lbs/4.4kg

Materials Of Construction

  • Coil Construction: Copper Voice Coil
  • Coil Former: Polyimide Former
  • Magnet Composition: Ferrite Magnet
  • Core Details: Vented & Extended Core
  • Basket Materials: Pressed Steel basket
  • Cone Composition: Paper Cone
  • Cone Edge Composition: Cloth Cone Edge
  • Dust Cap Composition: Solid Composition Paper Dust Cap

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