Best 845 amp?

Is the SuperTNT 845C ($128/pr) the same tube as Sophia's 845 Metal plate ($210/pr)"

From reading all the the comments here and AA, the "new" 845M is not as transparent & detailed as the 845C?

As the new US distributor of the Italian New Audio Frontiers 845 SET amps (absolutely stunning sounds, aesthetics and construction), absorbing all the 845 tube info!

Thanks, guys!

Jim Ricketts
tmh audio

Dopogue - thanks for the comments.

Two questions re: the "new" Sophia 845 metal:
1. Does it have any special requirements re: plate voltage? My understanding the original 845C had a problem in this area.

2. Are the overall power & dynamics reduced as reported in the original 845C?

Thanks again for the comments!