I have a Soundblaster (SB0570) Sound Card that worked well with Kubuntu 18.04.

Now that I've just installed KDE Neon, the Front Right speaker is not working. Instead, the sound is coming out of the subwoofer. For the record, I had this same issue when I used Linux Mint.

I have been trying to solve this for the past 4 hours researching a number of forums on the subject, but I still haven't succeeded.

Can someone help me, please?