Bumper C Series Pro Audio Speakers - (0835 C)

Bumper C Series Pro Audio Speakers.

Speaker Model: 835 C

Diameter size in inches: 8'
Diameter size in centimeters: 20.0
Z=Nominal Impedance in Ohms: 8
Fs=Free air resonance frequency in Hz: 91.52
Qts=Total Q Factor of driver: 0.760
Vas=Equivalent acoustic volume in cubic feet: 1.419
Vas=Equivalent acoustic volume in liters: 40.19
Xmax=peak linear displacement of cone in inch: 0.02
Xmax=peak linear displacement of cone in mm: 0.59
Pe=Max power in watts: 250
SPL=The half-space ref. Efficiency: 96.63
Voice Coil Diameter in inch: 1.5
Mounting Depth in inch: 3.5
Sd=Piston Area in sq.m: 203.2
BL=T*M Flux Density, Length Product: 6.75
no=The half-space ref. Efficiency: 2.84%
Cms=Mechanical Suspen. Compliance: 0.27
Mms=Mech. Mass of cone & free air load: 11.12
Qms=Mechanical Q factor of driver: 2.864
Qes=Electrical Q factor of driver: 1.035
Revc=DC Voice coil resistance in Ohms: 7.5
Zmax=imped. At top of resonance curve in Ohm: 27.79
Frequency response range tested from 20-2000 Hz: 92-5k
Magnet Assembly Weight (oz): 54