Eminence Beta 12A kaiutinelementti - 12", 8ohm, 250W, 98dB

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

UralTone HELSINKI

12 kpl varastossa