Physics

Crossover Calculator

Find the crossover frequency for a speaker filter.

Calculated Output

Crossover frequency (Hz) 1,989.44

Formula: fc = 1 ÷ (2π·R·C)

Step-by-Step Breakdown

1. Values used:

2. Speaker impedance = 8 Ω

3. Capacitor = 10 µF

5. Crossover frequency = 1,989.44Hz

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The math behind it

A first-order crossover's frequency is fc = 1 ÷ (2π·R·C), with R the driver impedance.

8 Ω tweeter with 10 µF → about 1989 Hz.

What is a first-order crossover?

A single capacitor or inductor giving a gentle 6 dB-per-octave slope.