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Zobel impedance correction
Calculate an ideal RC network to compensate a voice coil modelled as a resistance in series with an inductance.
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The calculation
Rz = Re Cz = Le / Re² Le in H; Cz in F
Assumptions & limits
Connect the resistor and capacitor in series with each other, then place that RC branch across the driver. Does not flatten the resonance peak. Real voice-coil inductance varies with frequency.
Background: Passive crossover design · Elliott Sound Products
