For my newbie ears, I feel like I get brain burn in with different DACs and amps, such that they all sound “normal” to me after a while and I have trouble telling any huge difference as compared to when I first got them. When I first got a Mojo there was clearly something different about it, which I can only describe as a jingling keys sound, in a good way. I liked it enough that I moved onto a Hugo2 and noticed the same effect, with a much wider soundstage. After months, I just can’t hear that jingling anymore. I’d also hear maracas and cabasas very distinctly which would be in their own spot in the soundstage, in all kinds of music, which never really stood out prior to having audiophile equipment. That doesn’t happen anymore either. Fortunately I do hear pretty obvious differences in headphones (otherwise there would be no point in collecting them). Part of this i’m sure is that I’ve never had any music education at all. When we were supposed to get recorders and learn about music and instruments in 3rd grade, my teacher was annoyed with the class and cancelled it, which was really awful in retrospect. Musical terms to me seem like advanced math or physics which are mysterious to me. Perhaps that ignorance contributes to my inability to detect and/or describe differences. I also think we’ve evolved brains so that “new” elements initially stand out, but then diminish as they’re determined not to be dangerous or negatively impactful. As an untrained, casual listener, i’m just settling on enjoying that I have good equipment and enjoying the music. Thus, I’lll likely scale back my collection of DACs and amps and focus on headphones.