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okay I pmed you I need to hear more about this vifa 4.5" it does look real close to the cdt one lol

heres the A/B parameters of the VIFA to CDT 04 ???


VIFA

Nominal impedance [ohm] 4
Voice coil resistance [ohm] 3.0
Nominal power [W] 35
Short term max power [W] 140
Long term max power [W] 80
NR surround
Sensitivity [dB] 89
Frequency range [Hz] 70-5000

Free air resonance [Hz] 67
Voice coil diameter [mm] 25
Voice coil height [mm] 10
Air gap height [mm] 4
Voice coil inductance [mH] 0.31
Eff. diaphragm Area [cm²] 58
Moving mass [g] 6.4
Magnet weight [g]/[oz] 415/14.6
Force factor [Bl] 4.7
VAS [l] 4.25
Qms 1.80
Qes 0.36
Qts 0.30



CDT 04 4.5" ( 5" around)


Nominal impedance [ohm] 4
Long term max power [W] 100
Sensitivity [dB] 89

Free air resonance [Hz] 54.3
Force factor [Bl] 4.7
VAS [l] 7.52
Qms 3.51
Qes 0.29
Qts 0.27
Sd 58 cm²
Bl 4.58 T/N
Rm 0.53 Ns/M
Re 3.3 ohm
Md 5.42 grams
 
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