I use JRiver for the majority of my playback. I appreciate the library management. I have considered using Roon, but it isn't worth the money to me until I have some headless DAPs.
I use Foobar2000 for ABX testing.
I use a mix of Foobar2000 and VLC for playing the occasional audio file directly from Windows Explorer.
I use Foobar2000 for ABX testing.
I use a mix of Foobar2000 and VLC for playing the occasional audio file directly from Windows Explorer.