Bumper MX Series Car Audio Speakers - (1265 MX)

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 ¼ ' 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

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