原箱的共鳴

Loudspeaker Design Cookbook by Vance Dickason -  sixth edition from 2000, page.147:

a) the response is rising with increasing frequency, [RL]
b) the response is rising with decreasing frequency. [RC]

[RL] for BENZ 3.5" fullrange / 5.2(ohm)

L=0.15916/f
0.15916/72(Hz)=2.2*10^-3(H)=2.2mH
R=18(ohm)
Response Increases 13 db as frequency increases from 72 Hz to 15000 Hz

[RC] for PHILIPS 8" fullrange / 7.1(ohm)

C=0.15916/f
0.15916/3400(Hz)=46.8*10^-6(F)=46.8uF
R=5.6(ohm)
Response Increases 5 db as frequency decreases from 3400 Hz to 60 Hz

內文待補...