I have used several audio players such as: Aimp, JRiver, Music Bee, among others, nothing compared to Foobar2000, it is the best I have tried so far. I started a few months ago using version 1.4, then 1.5.5 and now 1.6, but when I tried 1.6.1 I noticed a change in the sound, it doesn't sound so bad but not like its previous versions, I preferred to stick with 1.6 . I read in the version changes that was updated to FFmpeg 4.3.1. Is this the reason for the deterioration of the sound?
During playback, check volume slider for foobar2000 in Windows's volume mixer and set it to 100.