Passive radiator speaker cabinet with calibration box made by me, I optimized the frequency response of cheap passive radiator bought in aliexpres. Achieve 40 Hz – 16KHz with 3 dollar PR

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‚ÄčOptimized passive radiator cabinethttps://preview.redd.it/73cpakwj2qf61.png?width=4032&format=png&auto=webp&s=e210b1ed993c968848de9fa035a80e32ef3dabf2 via /r/DIY https://ift.tt/3cKuwe9

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