For quite literally years, DAC/Amp purchases on the higher-end have been more about build quality, features, and I/O, not sound quality.
I own and love my $100 mobile DAC, but it gets thrown in the bag and goes on the road with me.
On my desk at home, I prefer the beauty and versatility of a well-made stack that provides balanced connections for my over-ears and IEMs, that can also drive my reference monitors, and offers optical ins/outs for some of my legacy gear, my studio’s audio interface, etc.
Do I notice the difference between my cheap and expensive DACs? Not a chance; my ears not only aren’t golden, but are getting older. And after a few decades of playing and recording music, wearing very loud headphones, or sitting in front of large, near-field monitors, that’s only getting worse.
I got into the hobby before the internet was a thing and we only had recommendations from friends and colleagues. For me this was fellow musicians and audio engineers. My regret is not breaking out of my lane and moving to more colored headphones earlier on. I was stuck in neutrality for close to a decade and only using headphones that I could also justify using in the studio.
The irony is, even as someone that’s tracked, and mixed a lot of music over the years, I prefer a much more colored, V-shaped tuning for music enjoyment/personal listening. So while I love the LCD-X, MM-500, Sennheiser HD600 and DT1990s, I rarely listen to them when I’m not working in a daw. For that, I prefer stuff like the FatFreq IEMs, or the Focal Radiance, Apos Caspian, HarmonicDyne Zeus Elites, etc.