ERSE: CrossOver Calculator
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Second Order (12db/octave) Two-Way Crossover

Linkwitz-Riley Butterworth Bessel

High Pass Impedance: Ohms
Low Pass Impedance:  Ohms
                   Frequency:   Hz



12dB Crossover Diagram     C1 = µF

  L1 = mH


  C2 = µF

  L2 = mH

Linkwitz-Riley crossovers match attenuation slopes so that system response is flat at crossover point.
Butterworth crossovers yield to a peak at the crossover frequency.
Bessel crossovers have a frequency response between Linkwitz-Riley and Butterworth crossovers.
The phase shift on a second-order crossover is 180 degrees (reversed polarity).