cost-wise, its not that expensive to actually make a multi-BA IEM with crossovers. Someone estimated that it costs around usd$300 (for the BAs, crossovers and then shell manufacturing) or so to make a CA Andromeda that sells for usd$1000, bearing in mind that cost is calculated using consumer pricing (bulk buyers will have much lower prices). The high cost is in the research and development, so after they're done, they need to recoup that cost somewhere. KZ releasing so many models and then getting feedback on them is basically a shortcut to R&D while also being a big bait to users who itches to buy anything new, going so far to release a new sister brand so they can try out different kind of tuning. One tuning looks like a failure? well, we'll just release another model that kinda fixes what people think was wrong with it. I do wish they were more proactive in sending out early review units instead of hoping on vendors like Linsoul though (which is doing a stellar job of reaching out to both reviewers and consumers). uh, I hope NiceHCK doesn't do the same thing? I've measured some cables from them and all seems to be quite low-resistance (below 0.3ohm, I think, which is good enough for me). I think Kinboofi also had similar issues? I remember someone sharing a pic of the jack and wires not being soldered, can't remember which maker it was.