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| [Eminence Beta 12] |
| Eminence Beta 12 |
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| BETA- 12A Series Standard American
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.
SPECIFICATION
* Nominal Basket Diameter 12", 304.8 mm
* Nominal Impedance 8 ohms
* Power Rating Watts 250 W / Music Program 500 W
* Resonance 47 Hz
* Usable Frequency Range 43 Hz - 3.8 kHz
* Sensitivity 98
* Magnet Weight 38 oz.
* Gap Height 0.312", 7.92 mm
* Voice Coil Diameter 2", 50.8 mm
THIELE & Small Parameters
* Resonant Frequency (fs) 47 Hz
* DC Resistance (Re) 5.0
* Coil Inductance (Le) 0.64 mH
* Mechanical Q (Qms) 6.00
* Electromagnetic Q (Qes) 0.50
* Total Q (Qts) 0.46
* Compliance Equivalent Volume (Vas) 120.1 liters / 4.2 cu. ft.
* Peak Diaphragm Displacement Volume (Vd) 237 cc
* Mechanical Compliance of Suspension (Cms) 0.29 mm/N
* BL Product (BL) 10.8 T-M
* Diaphragm Mass inc. Airload (Mms) 40 grams
* Efficiency Bandwidth Product (EBP) 94
* Maximum Linear Excursion (Xmax) 4.4 mm
* Surface Area of Cone (Sd) 538.9 cm²
* Maximum Mechanical Limit (Xlim) 11 mm
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.
* Overall Diameter 12.03", 305.5 mm
* Baffle Hole Diameter 10.95", 278.1 mm
* Front Sealing Gasket standard fitted as standard
* Rear Sealing Gasket standard fitted as standard
* Mounting Holes Diameter 0.25", 6.4 mm
* Mounting Holes B.C.D. 11.59", 294.3 mm
* Depth 4.57", 116 mm
MATERIALS of Construction
* Copper voice coil
* Polyimide former
* Ferrite magnet
* Vented and extended core
* Pressed steel basket
* Paper Cone
* Cloth cone edge
* Solid composition paper dust cap |
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Drivers
