Sound libraries/plugins for Monogame?

I should have clarified. Playing stereo sounds is fine, but I cannot use panning to make the sound play on either side. Are there things I have to setup first?

Basically using the pan property does not change anything, regardless how i call/change it (either in the play(…) function or as a property of my SoundEffect).

The other part about soundEffects is that the game is basically in a permanent error loop i suppose when pan/pitch/volume are out of bounds (aka higher than 1), making the game basically unplayable (<1 FPS), but that is no problem since I can clamp the values before calling the play function. Just a note.

Note: I am not on the latest development build - were there any changes recently?
Upgrading brought a myriad of other problems so I settled for 3.6.0.187