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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