Eminence Beta-12A-2 12" Speaker, 8 Ohm

PA SKU # EMN BETA12A MFR # BETA-12A UPC # 876358000111
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  • 12" Woofer Driver, 8 Ohm, 250 Watt

12" Woofer Driver, 8 Ohm, 250 Watt

The performance of the Eminence Beta-12A-II 12" speaker is optimized for sound reinforcement systems. The Beta-12A-II is also suitable for lead and bass guitar, keyboards, guitar combos club music systems and stage monitors. Made in the USA. 7-year manufacturer's warranty!
  • Kapton coil former
  • Polyamide-imide coated copper voice coil
  • Ferrite magnet
  • Vented and pole piece
  • Pressed steel basket
  • Paper cone
  • Cloth accordian surround
  • SPECIFICATION
  • Nominal Basket Diameter: 12", 304.8mm
  • Nominal Impedance*: 8 ohms
  • Power Rating**
  • Watts: 250W
  • Music Program: 500W
  • Resonance: 47Hz
  • Usable Frequency Range: 43Hz - 3.8kHz
  • Sensitivity***: 98dB
  • Magnet Weight: 38 oz.
  • Gap Height: 0.31", 7.92mm
  • Voice Coil Diameter: 2", 50.8mm
  • THIELE & SMALL PARAMETERS
  • Resonant Frequency (fs): 47Hz
  • DC Resistance (Re): 5
  • Coil Inductance (Le): 0.64mH
  • Mechanical Q (Qms): 6
  • Electromagnetic Q (Qes): 0.5
  • Total Q (Qts): 0.46
  • Compliance Equivalent Volume (Vas): 120.1 liters / 4.2 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): 40 grams
  • Efficiency Bandwidth Product (EBP): 94
  • Maximum Linear Excursion (Xmax): 4.4mm
  • Surface Area of Cone (Sd): 538.9 cm2
  • Maximum Mechanical Limit (Xlim): 11mm
  • MOUNTING INFORMATION
  • Recommended Enclosure Volume
  • Sealed: 25.5-35.4 liters / 0.9-1.25 cu.ft.
  • Vented: 36.8-139 liters / 1.3-4.9 cu.ft.
  • Driver Volume Displaced: 122 cu.in. / 2 liters
  • Overall Diameter: 12.03", 305.5mm
  • Baffle Hole Diameter: 11.07", 281.2mm
  • Front Sealing Gasket: Fitted as standard
  • Rear Sealing Gasket: Fitted as standard
  • Mounting Holes Diameter: 0.25", 6.4mm
  • Mounting Holes B.C.D.: 11.59", 294.3mm
  • Depth: 4.57", 116mm
  • Net Weight: 7.5 lbs, 3.4 kg
  • Shipping Weight: 9.7 lbs, 4.4 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: 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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