First impressions: Definitely sounds like a more balanced chu; some other people are claiming that they are successors to ssr/ssp", maybe they are taking over that price bracket but doesn't seem to sound a lot like my SSPs, at least from what I remember when I had them briefly. It has slightly less edge, and just a tad more bass than the chu, can still sound shouty/harsh on some tracks. Technicalities and resolution are good, good detail retrieval. Soundstage is decent but excels at imaging and intrument separation. The sound is a lot more similar to the 7hz zero, albeit less transparent and not as warm but is much better built.

The rubbery cable feels very similar to the orginal chu, but it's detachable. I prefer a thicker cable, so it got swapped out. Also did not try with stock tips. I use MS42 tips for almost all my IEMs, so at least my comparison with the chu is fair. The build is really good, there's some heft to the shell.