I have an S9+ and use Tube Amp Pro and Concert Hall audio enhancements. They sound brilliant! I have come across several forums and posts on social media begging for the return of these two features that have disappeared from newer S20 models etc. I was just about to upgrade to the S20 FE, but seeing as this model does not have these features, I'm reluctant to upgrade.
Please Samsung, bring back these features in future models.