Doug Schroeder has posted a review of the VAC Phi 200 vacuum tube monoblock power amplifier ($19,800/pair) at Dagogo. His conclusions:
The VAC sound is audio-writ large but properly proportioned; it is elegant, opulent and ebullient. The vastness and spatiality of the soundstage with the Phi 200 is quite surprising when heard for the first time. You may have heard many amps with differing power resources, and different levels of clarity. If you have worked primarily with solid-state amps, you likely have not heard the expansiveness a fine tube amp can bring to a system.
You can read the full review here.
