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Bumper MX Series Car Audio Speakers - (1265 MX)

Bumper MX Series Car Audio Speakers
The 1265 MX is designed in both 4 ohm and 4+4 Ohm to provide a rich sound for both use in home audio and custom sound designs in car audio. It has a 1 ' Diameter double pressed heavy foam surround on a rigid and strong cone body , vented pole piece, 6 windows heavy frame and is built to withstand long hours of play.


SPEAKER MODEL: 1265 MX
Diameter size in inches: 12
Diameter size in centimeters: 30.48
Z - Nominal Impedance in Ohms 4
Fs = Free air resonance frequesncy in Hz: 34.1
Qts = Total Q Factor of driver: 0.38
Vas = Equivalent acoustic volume in cubic feet: 4.38
Vas = Equivalent acoustic volume in liters: 123.91
Xmax = peak linear displacement of cone in inches: 0.30
Xmax = peak linear displacement of cone in mm: 7.62
Pe = Max power in watts: 560
Ref = Driver's SPL 1W at 1m in dB: 92.8
SPL = The half-space ref. Efficiency: 92.8
Voice Coil Diameter in inches 2.5
Mounting Depth in inches: 5 1/2
Sd = Piston Area in sq. m 0.0531
BL = T*M Flux Density, Length Product 11.4134
no = The half-space ref. effciency: 1.21%
Cms = Mechanical suspen. compliance: 309.469
Mms = Mech. mass of cone & free air load: 70.438
Qms = Mechanical Q factor of driver: 7.876
Qes = Electrical Q factor of driver: 0.3938
Revc = DC Voice coil resistance in Ohms: 3.4
Zmax = imped. At top of resonance curve in Ohms: 71.404
Fo = Free air resonance frequency in Hz: 34.089
Magnet Assembly weight (oz): 157
BOXES FOR 1 SPEAKER APPLICATION RECOMMENDED ENCLOSURES FOR PORTED BOXES (WOOD IS 3/4').
Enclosure size (cubic feet) Outside volume (Vb) 1.50
Enclosure size (liters) Outside volume 42.48
Number of ports on the front of a box 1
Port size (inches)  
Turning frequency Hz (Fb) 47.52
Cutoff frequency Hz (F3) 54.61
   
List price $209.94