What is the one amp you would love to have

[RGA]

While i have not heard them - I would gamble on the Audio Note Ultra. I heard the lower end Gaku Ons ($250,000pr) and Ongaku ($130,000) --- so I'll bet on their new current flagship (The Ultra). Though they have something truly outlandish in the works. Ultra is $750,000 (Three boxes per channel 211) and was initially just a custom made for one rich guy in Greece - but now there is an aparent market as apparently they've sold 4 more and have more orders coming. There is another amplifier coming soon above this one as well.

The Greek guy's full system is here
http://www.monoandstereo.com/2017/03/audio-note-uk-ultra-concept-ultimate.html