Anyone listen to Zu Audio's Definition Mk3?

Soular Energy, Ray Brown. Wonderful to hear what a 4 string acoustic instrument can do. One of my favorite Ray Brown albums.

Does anyone know what the power rating for the Def 4 subwoofer amp is rated at?
I don't see this information listed anywhere.

Vetterone, there has been a little bit of discussion on this thread re changing caps on Def4 tweeters. Charles esp. recommends Duelund CAST Cu, or Ag. What specifically did you change to, what has your experience been, and did you have the stock caps in your first pair of 4s?
This is not the most straightforward change, since one cannot practically perform an a-b, so need to go down this path with confidence that the change will be significant, and positive across a whole spectrum of music.
At the moment, what I'm loving about the 4s is a real transparency in the treble, which together with the delicacy of the FRDs is providing an almost electrostatic like quality to the sound. Can this treble quality really be improved a great deal further with cap switch?

The Def4 sub amp outputs a rated 400w into the sub-bass driver's nominal 6 ohms load. The amp is sourced from Hypex, an OEM version of the UcD400. It's as much responsible for Def4's seriously improved sub-bass performance as is the downfiring driver, over earlier Definitions.

Phil

I upgraded my 2 Mini Method amps to the new def 4 hypex versions, they are 400w as Phil says and sound far better than the old 120w ones. Bass is deeper and faster with way more headroom BUT the PEQ functions are far better allowing superior integration with the mains.