KraiAudio for Mac
A bit-perfect music player that takes headphone correction seriously: import a correction fitted from lab measurements, then adjust it by ear on a live graph.
macOS 15+ · US$39 · 14-day trial
Software you buy once.
No subscription, no account, no phone-home. You pay for a version, you keep that version, and it keeps working whether or not this site does.
KraiAudio for Windows
The same idea on a native C audio engine: WASAPI exclusive, native DSD over ASIO, and a ten-band parametric EQ.
Windows 10/11 · US$39 · 14-day trial
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