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Enter high and low pass speaker impedances.
Enter desired crossover frequency.
On the second-order crossover calculator you must select type of crossover.
Click on the “calculate” button to get the answers.

  • Impedance is the nominal resistance of the speaker (typically 4 Ohms).
  • Enter frequency in Hertz (not kHz).
  • Capacitor value(s) are given in millionths of a Farad (µF).
  • Inductor value(s) are given in thousands of a Henry (mH).
  • For the Zobel circuit, enter inductance in Henries (not mH).


First Order Crossover (6db/octave).
Second Order Crossover (12db/octave).
Third Order Crossover (18db/octave).
Fourth Order Crossover (24db/octave).
Zobel Circuit (Impedance Stabilization).
L-pad Circuit (Speaker Attenuation).