Pretty min, bruh.
Is it multiple speakers? I would assume that it would be impossible to tell otherwise, and clearly there was some difference before.
You should probably reinstall the drivers and check your settings to see if your front/back balance is correct.
Other than that you’d have to post diagnostics.
Submit a ticket to battle.net support for blizz support.
You should also check the pinned posts for information on common issues on the different platforms.