Speaker crossover calculation formula

Speaker Crossover Circuit Calculator

First order (6dB/octave) two-way crossover

High pass impedance: ohm
Low pass impedance: ohm
frequency: Hz

   C1= μf




 L1= mH

. The phase shift of the first order frequency divider is 90 degrees

Second order (12 dB/octave) two-way crossover

Linkwitz-Riley Butterworth Bessel
High pass impedance: ohm
Low pass impedance: ohm
frequency Hz


Linkwitz-Riley Linkwitz-Riley filter
Butterworth Butterworth filter
Bessel Bessel filter
   C1 = μf

 L1 = mH


 C2 = μf

 L2 = mH

Third order (18dB/octave) two-way crossover
High pass impedance: ohm
Low pass impedance: ohm
frequency: Hz


    C1 = μf
  C2 = μf
  L1 = mH

  L2 = mH
  L3 = mH
  C3 = μf

Fourth order (24 dB/octave) two-way crossover
High pass impedance: ohm
Low pass impedance: ohm
frequency: Hz


   C1 = μf
 C2 = μf
 L1 = mH
 L2 = mH

 C3 = μf
 C4 = μf
 L3 = mH
 L4 = mH

Zobel circuit (impedance stabilization)
DC resistance(Re): ohm
Equivalent Inductance(Le): Henry



    C1= μf


  R1= ohm

L-type speaker attenuation circuit
Driver impedance = ohm
Ideal attenuation = dB



    R1 = ohm


  R2 = ohm

Speaker crossover calculation formula