Pluggable DSPs and ability to chain them and save chains to presets (including ability to run some high-quality parametric equalizer with bell and shelf filters (built-in, or external via a VST adapter), high-quality resampler is also must-have).Full ReplayGain support (both scanning and compensating for loudness changes when playing).Ability to play without any drop-outs when using USB DAC (foobar2000 may be beaten here, because sometimes it happens, after all my attempts to optimize its output settings, so I guess this is easy one too).True gapless playback (absolutely required, but I guess almost any modern audio player implements it?).(I tried to list them in order of importance) (some of them are implemented via plugins, a.k.a. Some features that I will miss when using another audio player include: But I like music too much, so I must find an audio player that will be comparable to foobar2000.
