I've never heard of root access to give better sound. Root access is typically needed for making admin level changes to the OS. It is possible, though, in case Samsung has a software limitation on the audio hardware itself, but for some reason, I doubt that.
Some caveats:
1. Rooting voids any warranty you may still have.
2. Rooting can lead to a bricked device (very rare, as long as you follow all directions for you exact device model).
3. Root blocks OTA updates.
4. Samsung has been trying to block root access for quite some time. Depending on your carrier, it may be impossible. The last I knew there were still some bounties on Verizon and AT&T Samsung devices as far back as the 7.
12-12-2018 08:53 AM