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Bumper DC 18120 C

Accessories

Serie DC-C
Model DC 18120 C
Diameter size in inches 18
Diameter size in centimeters 45.72
Z - Nominal Impedance in Ohms 8
Fs = Free air resonance frequesncy in Hz 24.11
Qts = Total Q Factor of driver 0.37
Vas = Equivalent acoustic volume in cubic feet 17.6
Vas = Equivalent acoustic volume in liters 495.3785
Xmax = peak linear displacement of cone in inches 0.28
Xmax = peak linear displacement of cone in mm 4.32
Pe = Max power in watts 1250
Ref = Driver's SPL 1W at 1m in Db 94.3
SPL = The half-space ref Efficiency 94.3
Voice Coil Diameter in inches 4
Mounting Depth in inches 7.5
Sd = Piston Area in sq m 0.12
BL = T*M Flux Density, Length Product 20.0021
no = The half-space ref effciency 0.017003
Cms = Mechanical suspen Compliance 242.2571
Mms = Mech mass of cone & free air load 179.8336
Qms = Mechanical Q factor of driver 7.2413
Qes = Electrical Q factor of driver 0.395
Revc = DC Voice coil resistance in Ohms 5.8
Zmax = imped At top of resonance curve in Ohms 112.1334
Fo = Free air resonance frequency in Hz 24.1127
Magnet weight (oz) 120
Magnet weight (kg) 4.21978