Joined on Aug 25 2020

GTA San Andreas don't support 5.1/7.1 speaker configuration
Snapshot 4.1
I noticed that if i set my speaker configuration as 5.1 or 7.1 some sounds will be missing or very lowered, especially the my character or vehicle's sounds. I also realized that this is a known issue in the GTAForum community.

I resolved this by using the quadrophonic setting, but, some people who costantly their speakers settings may find this a bit frustrating since they'll to change them everytime in order to play UG/UGMP.
Just change your speakers settings in your audio control panel, i use Audio Realtek HD.