Eminence Beta 12 - 8 OHMS 250W 12" Driver 8 ohm
Recommended for professional audio and bass guitar applications as a woofer in a vented enclosure. Also works well for PA in a sealed or bandpass enclosure.
Specifications:
- 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/W@1m
- 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.
- Recommended Enclosure Volume: 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 10.95", 278.1mm
- 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
Detailed specifications unavailable, please EMAIL the sales office for additional information.
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Eminence Beta 12 8 Ohm Twin Pack is a package consisting of the following items:
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8 OHMS 250W 12" Driver 8 ohm