What a coincidence! I have the same equipment as you: SU-8 v2 attached to a Classé CAP-151 (balanced, just the reason why I bought the Classé) ... And wondering the same: whether upgrade or not to a SU-9
The same happened to me. I ordered a second unit, after receiveing a mail from Shenzen Audio -Amazon- telling me they are only selling the 1.2 version, but I get again a v1.1 one. I returned both. It seems they have a lot of v1.1 units and don't want to lose the money invested. But the pity is...
Me too. Received last tuesday a v1.1 and wondering what to do. I think I will buy another one -via Amazon- asking for a 2.0 (1.2 PCB) and send back the v1.1 once the new received. BTW it sounds pretty good! It is replacing now the internal DAC of a ChromeCast Audio -not really bad this latter-...