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Bumper X Series Car Audio Speakers - (0648X)
































Bumper X Series Car Audio Speakers - (0648X)

Bumper X Series Car Audio Speakers

The 648 X is one of the heaviest 6' drivers in the market. It is designed in both 4 ohm and 8 ohm versions to provide a rich sound for both uses in home audio and custom sound designs in car audio and bass tubs. it has a double pressed heavy foam surround on a rigid and strong cone body , vented pole piece, with a heavy magnet assembly to withstand long hours of play.


SPEAKER MODEL:648 X
Diameter size in inches:6.5
Diameter size in centimeters:15.24
Z - Nominal Impedance in Ohms4
Fs = Free air resonance frequesncy in Hz:73.8
Qts = Total Q Factor of driver:0.43
Vas = Equivalent acoustic volume in cubic feet:0.1
Vas = Equivalent acoustic volume in liters:2.83
Xmax = peak linear displacement of cone in inches:0.17
Xmax = peak linear displacement of cone in mm:4.32
Pe = Max power in watts:350
Ref = Driver's SPL 1W at 1m in dB:85.2
SPL = The half-space ref. Efficiency:85.3
Voice Coil Diameter in inches2
Mounting Depth in inches:3 1/2
Sd = Piston Area in sq. m0.01
BL = T*M Flux Density, Length Product9.69
 no = The half-space ref. effciency:       0.002
Cms = Mechanical suspen. compliance:176.004
Mms = Mech. mass of cone & free air load:26.447
Qms = Mechanical Q factor of driver:8.314
Qes = Electrical Q factor of driver:0.4582
Revc = DC Voice coil resistance in Ohms:3.51
Zmax = imped. At top of resonance curve in Ohms:58.650
Fo = Free air resonance frequency in Hz:73.769
Magnet Assembly weight (oz):106.4
Frequency response range tested from 20-2000 Hz:20-7400
BOXES FOR 1 SPEAKER APPLICATION RECOMMENDED ENCLOSURES FOR SEALED BOXES (WOOD IS 3/4').
Enclosure size (cubic feet) Outside volume (Vb)0.5
Enclosure size (liters) Outside volume14.16
Resonant frequency Hz (Fc)80.73
Cutoff frequency Hz (F3)136.46
BOXES FOR 1 SPEAKER APPLICATION RECOMMENDED ENCLOSURES FOR PORTED BOXES (WOOD IS 3/4').
Enclosure size (cubic feet) Outside volume (Vb)0.5
Enclosure size (liters) Outside volume14.16
Number of ports on the front of a box1
Port size (inches)2x1.52
Turning frequency Hz (Fb)75
Cutoff frequency Hz (F3)36.3
   















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