Band pass 4 nd Order (24dB) normal polarity

Change parameters to your requirements

The calculated values

Frequency Spread high/low 3 octaves

Cross-over frequency high 8000 Hz

Cross-over frequency low 1000 Hz

Bandpass gain 0 db

C1 = 16.68 uF

C2 = 23.56 uF

C3 = 3.53 uF

C4 = 0.79 uF

L1 = 0.63 mH

L2 = 3.60 mH

L3 = 0.29 mH

L4 = 0.14 mH

the calculated values are rounded to 2 decimals

Recommended values for capacitors

C1 = 16 uF + 0.56 uF + 0.1 uF  parallel

C2 = 22 uF + 1.5 uF  parallel

C3 = 3.3 uF + 0.22 uF  parallel

C4 = 0.68 uF + 0.1 uF  parallel

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