This is one of the core reasons I've always liked HTC. I fell in love with the M8 for this very reason, and was looking forward to the 11.
Unfortunately, I think most people don't believe audio quality is a big deal. For those of us who do, like me, the removal of the headphone jack was a buzz kill.
I finally went with the S8. It's audio MIGHT be slightly less impressive (hard to know - often people are rating loudness and not musical quality) but it is rated for hi fi and can handle up to 32 bit . . . AND it has a headphone jack.
V20 is current champion in terms of audio playback, guaranteed. The stereo front facing boom speakers from the M7-M9 was one of their strongest selling points. Too bad they were trying to sell out and look like Apple with the new simple design.