I want to reply also to another post where you talked about EQ. See, like you say almost no one knows how to use it, myself included.
Let’s leave alone the fact that EQ is a blasphemy for a “real audiophile”, I am well past that. Let’s also leave alone the fact that my knowledge is nil: I could find several EQ settings to be used in order to make my Focal Elegia sound well (its mids are insufferable to my ears).
The issue, in my case, is the convenience that’s often mentioned in this forum when talking about DAPs. Sure, you have your collection of music and there are plenty of options. But what about streaming, and specifically, streaming through Spotify? There was a time where I used to swear Tidal sounded better, now I believe it’s placebo and little else. I have my 7 year listening history in Spotify, 500 artists I am notified of when they release something, etc... And in Spotify you can NOT have parametric equalizer. I tried suggested configurations for fixed band equalizers and nothing come close to what I get with a parametric equalizer.
So, back to square one, I’d rather use headphones which do NOT need an equalizer to sound good. Sennheiser HD800s? Hell yeah. Audeze Sine (purchased at $220 second hand), perfect as well. The rest of my options is painfully uncomfortable, so much as I have to use a DAP. Because let’s talk about parametric equalizer on an iPhone. There you cannot stream anything, there is no USB Audio Player.