The next rabbit hole to peer down into: the Tidal app sucks as a player. UAPP pulls the stream from Tidal and makes it sound right. So even with an Android DAP you may be better served bypassing the Tidal app itself. Spotify, Qobuz etc. reportedly don’t suffer from the same issue.
You may be thinking about
this thread.
As to your, very legitimate, question about the Mojo DAC vs an off-the-shelf chip from AKM, ESS or Cirrus Logic, I am in no way an expert myself, but let me tell you the story of How My First Website Was a Useless Reinvention of the Wheel.
Once upon a time, many moons ago, as inexperienced bloggers coming from the world of print journalism, my girlfriend (now wife) and I wanted a blog with a slick, professional, distinctive visual identity, and powerful editing tools. So we paid good money to a graphic designer and a developer to implement just that. We agreed upon a unique look, and then the dev came in and turned that cool layout into a usable website. She also painstakingly programmed the entire back-office. She put in the hours no doubt, and the whole thing worked as intended after a couple of bug fixes.
Exhilarated, we went live - only to find out the blog was not search-engine optimized, and the back-office was a rigid structure that wouldn’t let us evolve. The entire endeavor, born dead.
Turns out, all we needed was a custom Wordpress template.
Well, I somewhat suspect Chord and their luminary Rob Watts went about programming the FPGA DAC in a similar way. It’s an incredibly potent and capable solution, but in actual terms? Just a reinvention of the wheel, that does not add to the final user experience in any meaningful way.
Once you reach a point where the difference between DACs is that one goes up to 768Mhz instead of 384 (arguably overkill even in a recording setting), distortion is a 2 instead of a 3 six figures behind the dot, and SNR is so high if it was fully exploited you’d go deaf within three seconds, why bother? Amplification is where the party’s at. Cayin’s approach with the $500 N3Pro makes much more sense to me than A&K’s with the $1800 SE200 - three amplification options are better than two DAC-based paths.