I don't know about the other Jadis but I have a chance to listen to a Jadis JP80MC in person....This is a wonderful tube pre-amp if you have the $$$. It has the ability to play music like music and human vocal likes human vocal...not electronic sound which were produced by so many so-called hi-end pre-amp.
This is one pre-amp that you can keep for life.
This is one pre-amp that you can keep for life.