I understand where you guys are coming from but you are justifying a $1000 phone to rely on a $50 case to sound better? Really, that tiny pinhole of a speaker really doesn't emit anything of sound quality at all, how can it? It's a pinhole. Physical characteristics of a pinhole size speaker is not going to give you any good sound quality. I thought it was maybe just my phone but I was able to test 3 other Note 10 +'s and all had that low volume, low quality sound coming from that pinhole. Give this a little read. Tells you all about what that hole is and how the speaker grill easily gets covered up. Most Note cases cover the grill up, except for Samsung cases most likely.
https://www.sammobile.com/news/hole-on-top-of-galaxy-note-10-isnt-a-speaker-let-us-explain
UPDATE:
So I took off my Pitaka case and the sound was much better. Apparently the Pitaka case covered the top speaker 'grill' that is forward facing to the user. I was unaware there was a speaker there since you can barely see it. If you look real close right above the sensor there is a grill and that oblong hole at the top is just a passive pathway from the grill speaker and is not a real speaker itself. I hope the cases I ordered to test out won't interfere with the top speaker grill. I wish the Note 10+ had Apple's sound capabilities. Live and learn.