Eminence BETA-8A Mid Woofer 8" 200mm 450w Max 95db v.c. 51mm
SPECIFICATION
Nominal Basket Diameter 8", 203 mm
Nominal Impedance* 8 Ù
Power Rating*
Program Power 450 W
Watts 225 W
Resonance 65 Hz
Usable Frequency Range 78 Hz - 4.5 kHz
Sensitivity* 95.1 dB
Magnet Weight 34 oz.
Gap Height 0.312", 7.9 mm
Voice Coil Diameter 2", 51 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 65 Hz
DC Resistance (Re) 5.99 Ù
Coil Inductance (Le) 0.49m H
Mechanical Q (Qms) 4.95
Electromagnetic Q (Qes) 0.42
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 63 cc
Mechanical Compliance of Suspension (Cms) 0.37 mm/N
BL Product (BL) 9.6 T-M
Diaphragm Mass Inc. Airload (MMs) 16 grams
Efficiency Bandwidth Product (EBP) 156
Maximum Linear Excursion (Xmax) 3 mm
Surface Area of Cone (Sd) 210 cm2
Maximum Mechanical Limit (Xlim) 7.4 mm