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Crossover Network Design Formulas & Calculator

 This calculator will design a two-way third-order Butterworth crossover network for you. If you don't understand what any of the terms mean, click here for help.
 
3rd Order Butterworth
High Pass Filter Schematic
 High Pass Filter
Low Pass Filter Schematic
Low Pass Filter
Bandpass Filter Schematic
Bandpass Filter
C1 = .1061 / ( Rh x f )
L1 = (.1194 x Rh ) / f
C2 = .3183 / ( Rh x f )
L2 = (.2387 x RL ) / f
C3 = .2122 / ( RL x f )
L3 = (.0796 x RL ) / f
Calculate Your Crossover Here

 To use this form, enter the impedance values (at the crossover frequency) for your speakers, and then enter the frequency you want your filter to crossover at. Now, click the "Calculate Values" button, and your results will appear in the empty text boxes.

Enter Tweeter Impedance Ohms
Enter Woofer Impedance Ohms
Enter Desired Crossover Frequency  Hertz
HighpassLowpass
C1 =   Microfarads
L1 =   Millihenries
C2 =   Microfarads
L2 =   Millihenries
C3 =   Microfarads
L3 =   Millihenries


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