B9Scrambler
Headphoneus Supremus
Differences in other series can be also on QKZ HD9 vs.KZ HD9 ? Not trying to make a point or argue, just that there can be differences. Heck, if even KZ own ATE series has at least 4-5 different batches, then claiming QKZ vs. KZ branding doesn`t have differences is kind of "wrong" in my eyes...
Just thinking out loud.
I think I misunderstood in that you were saying the HD9 was not an actual KZ. My apologies. The QKZ version, yeah, that's probably going to end up being different if QKZ versions of past KZs are any indication.