There is no link to H2O amps yet, other than an email address. The builder has been finding it hard to find the time necessary to build a web site.
I can tell you there are people I know who are selling off Evo, Krell, eAR, Pass, HSA, and Rowland amps, for a stereo or mono H2O.
The startup company H2O is going to be in full production sometime next month, including a web site.