I would have to chime in here and state after working in two of the highest profile dealers in the country I have to call em the way I hear them.
Power regenerators for the most part are or can be excellent on front end devices. Power amplifiers need juice and lots of it. The RG 1200s should be moved to the amps and then a power regenerator can be played with here if required. The Richard Gray's are fantastic for power amplifiers. My set up in my main demo room is Audience Adapt for the front end and the RG 1200s for the amps, works splendly!