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Crossover Calculator - Zobel Circuit
 
Impedance Stabilization
 
Even though speakers are rated at a certain resistance the actual impedance varies with frequency. To compensate for the non-linearity of speakers Zobel circuits are used. Re is the DC resistance of the woofer (can be measured with an ohmmeter.) Le (or Lces) is the electrical inductive equivalent of the driver.
 
DC Resistance: Ω
Inductive Equivalent: Henries
   
 
 
C1 = µF
R1 = Ω

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