Hi Kyomi, from all the information you have provided, it sounds like you have actually heard/seen the MkII amps even though you don't have in stock yet? If so, was that at Blue Bird Music, the US distributor? We've all had a lot of questions, I think in part because info is hard to come by for Jadis.....it would be nice if Blue Bird would update their site to include this amp; as I mentioned above, the only reference to the JA30 is a MkIII version which must be older since it is only spec'd for KT120 output tubes. Prices would be nice also. Thanks, hope you get the MkII amps soon......