There is no perfection in this world, and people always need some freedom to fit their needs, even if it is a small adjustment, but it may be a necessary option.
Yes, it is the best music player, maybe it should be better:
now it starts to support Hi-Res devices and files, so the frequency range of EQ should be relaxed to at least 10Hz-20kHz, which is reasonable and necessary for high quality music playback.