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A comment on Show HN: HiFiScan, a Python app to optimize your loudspeakers. Parent comment

Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by pier25 on Sunday September 11, 2022 @11:52AM (#32800674)
There are cheap calibrated mics available. There's one for about $20 from Dayton Audio.
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