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(0848 RF) | Bumper RF Series Car Audio Speakers
































Bumper RF Series Car Audio Speakers - (0848 RF)

Bumper RF Series Car Audio Speakers

The 848 RF is designed in both 4 ohm and 8 ohm to provide a rich sound for both use in home audio and custom sound designs in car audio. It has a double pressed heavy red 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:848 RF
Diameter size in inches:8
Diameter size in centimeters:20.32
Z - Nominal Impedance in Ohms4
Fs = Free air resonance frequesncy in Hz:62.5
Qts = Total Q Factor of driver:0.48
Vas = Equivalent acoustic volume in cubic feet:0.3
Vas = Equivalent acoustic volume in liters:8.46
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:88.5
SPL = The half-space ref. Efficiency:88.3
Voice Coil Diameter in inches2
Mounting Depth in inches:3 1/2
Sd = Piston Area in sq. m0.018
BL = T*M Flux Density, Length Product10.61
 no = The half-space ref. effciency:       0.000
Cms = Mechanical suspen. compliance:176.482
Mms = Mech. mass of cone & free air load:36.707
Qms = Mechanical Q factor of driver:7.225
Qes = Electrical Q factor of driver:0.4609
Revc = DC Voice coil resistance in Ohms:3.60
Zmax = imped. At top of resonance curve in Ohms:60.03
Fo = Free air resonance frequency in Hz:62.5
Magnet Assembly weight (oz):106.4
Frequency response range tested from 20-2000 Hz:20-6200
BOXES FOR 1 SPEAKER APPLICATION RECOMMENDED ENCLOSURES FOR SEALED BOXES (WOOD IS 3/4').
Enclosure size (cubic feet) Outside volume (Vb)0.75
Enclosure size (liters) Outside volume21.24
Resonant frequency Hz (Fc)73.7
Cutoff frequency Hz (F3)112.26
BOXES FOR 1 SPEAKER APPLICATION RECOMMENDED ENCLOSURES FOR PORTED BOXES (WOOD IS 3/4').
Enclosure size (cubic feet) Outside volume (Vb)0.8
Enclosure size (liters) Outside volume21.24
Number of ports on the front of a box1
Port size (inches)3x2.95
Turning frequency Hz (Fb)70.00
Cutoff frequency Hz (F3)0
   
List price $119.94















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