There is NO ZS6 v2.
The only difference is that SOME of the most recent production runs have a nozzle lip. That’s it. No tuning changes, no “extra bass”.
I own a pile of different ZS6, all bought at different times, and I summed it all up here, including FR graphs to prove that there’s ZERO sonic differences:
https://www.head-fi.org/threads/kno...essions-thread.698148/page-1934#post-14098992
@mbwilson111 is exactly right. Just choose your favorite color and find the best price. That’s the only decisions you need to make. At least until KZ DOES decide to revise the tuning and come out with a true ZS6 v2. But I doubt that will happen, because they are too busy with all of the new models.
And in some ways, that had already kind of happened (where a different version has come out that resolved the tuning issues with the ZS6). But it is not made by KZ (it is made in the same factory as the ZS6 though). That’s all I can say about it though.