Car Audio / Passive Crossovers, High Pass/Low Pass Capacitor & Coil Calculator
Use these formulas to calculate for first, second, and third order low pass, high pass, and band pass filters. Do not use these for narrow band pass filter calculations.
If you need a 16 mHy coil, you can series a 12.8 mHy coil and a 3.2 mHy coil. If you need a 70 µfd capacitor, you can parallel two 35 µfd capacitors.When the exact value of a coil or capacitor is not available, you can substitute values of ± 5%.
• High Pass/Low Pass Calculator
• Narrow Band Pass Calculator
• Zobel Calculator