Yep - you're hearing what I'm hearing. Quite dark, rolled treble, definitely very different to my usual preferences. On really well recorded tracks though, they're actually not too bad (just listened to some Steely Dan). Sort of warm and mellow - but I'm finding vocals quite distant. They sound better the more I acclimatise to them - but I'm definitely missing the sparkle and having vocals a little more forward/focused.
Yeah agreed, I'm giving some Daft Punk a listen on these. The mids seem to be nice but a little laid back and the whole presentation comes off as mellow. Try giving Daft Punks Discovery album a spin on these and see if you notice an elevated overly rumbling sub bass. There seems to be a little bleed into the lower mids but overall not bad control for this price tier of IEM.