2-way Audio crossover
You can visit my blog for more details: http://maj.pavlin.si/2020/06/09/2-way-audio-crossover/
I designed a simple 2-way passive audio crossover, consisting of 2 power inductors and 2 electrolytic capacitors. This makes for a second-order design or 12 dB/octave. This order is commonly used in passive crossovers as it offers a reasonable balance between complexity and response. Higher order audio filters are harder to design, because components interact with each other.

I calculated the component values based on the Linkwitz–Riley capacitor and inductor ratios. I chose the cutout frequency to be at 4000 Hz. This value was choosen to better protect the tweeter from lower frequencies.


2-way Audio crossover
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Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen(Without Speaker)
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Mark Kravchenko
Jun 18,2025
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Engineer
Nov 20,2024
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Prasanna K
Apr 25,2022
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Maj Pavlin
Jun 10,2020
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