For new users, please read about PerfectDynamics 2.0 Sound Optimizations first for new improvements with Fidelizer ROMs. After successful ports of iBasso DX220 ROM to DX150 and DX200 devices, it’s finally time to add Purist ROM optimizations to actual DX220 now. I tested with real iBasso DX220 DAP before applying Fidelizer Mod optimizations to confirm that it…
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