Then it seems that i have no clear idea on what the "hybrid" actually means and how it is implemented. How GaN output is "packed with tubes", just for an additional flavor or for an additional power? Which architecture is "preferable", hybrid or this one? I have no idea how AGD amplifiers sound, but in general i prefer as less flavor as possible.
Atmasphere class d amps can also be interesting. I did not find them on the site and have no idea on preferences made in their design. Neither i know if there are already completed models. Can Ralph provide more detail?