Assuming 200Ω mic impedance:
Examples:
100Hz is made of 320mH parallel to mic inductance
320Hz is made of 100mH
200Hz of 160mH
400Hz of 80mH
640mH of 50mH
160Hz. of 200mH
The product of cutoff frequency and inductance (Hz and mH) is constant.
The easy way to calculate any frequency or inductance is:
200 dividing by 2 dividing by 3.14... (π) devidibg by frequency or inductance to find one from the other.
Fco=200/(2πL)
L=200/(2πFco)
More properties of Pleiades filters such as the possibility to add cutof frequencies when 2 or more filters are connected one after the other (in electrical parallel) are shown in earlier posts.
Examples:
100Hz is made of 320mH parallel to mic inductance
320Hz is made of 100mH
200Hz of 160mH
400Hz of 80mH
640mH of 50mH
160Hz. of 200mH
The product of cutoff frequency and inductance (Hz and mH) is constant.
The easy way to calculate any frequency or inductance is:
200 dividing by 2 dividing by 3.14... (π) devidibg by frequency or inductance to find one from the other.
Fco=200/(2πL)
L=200/(2πFco)
More properties of Pleiades filters such as the possibility to add cutof frequencies when 2 or more filters are connected one after the other (in electrical parallel) are shown in earlier posts.
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