Although appearance of ACT06/07 were shown for a period, the first time demo could be tried in Japan was not a long time ago (15th Jul 2023) according to twitter.ACT06 and ACT07 modules for the HS/ST2000 are available in HK. I didn't read any impressions on them yet despite having appeared in multiple shows in Japan already.
I asked about the difference between the two modules from a HK shop and got this response: ACT06 is focused on resolution/clarity while ACT07 is focused on bass response.
For Hong Kong, today is the first release announced from distributer Soundwave.
There are no reviews as there should not be many people have tried / bought yet.