@mga71 I believe I’ve posted on this before (if memory serves). IF NOT, here goes:
With this version* of the F10 Neo drivers: it is my opinion, based on two and a half years of personal experience, that the power output from a 300B SET amp is in the "ideal range" to drive the Nenuphars (F10 Neo + TQWT enclosure).
I continue to be surprised that owners have not used 300B SET amps to drive the Nenuphars. Even if I ignore [IMO] the "ideal power output synergy", the far wider numbers and brand options available (versus other SET types), the spread of options over a wide price range, the healthy used market, all point to a higher probability match.
My previous 2A3s were purposely designed to output 4 Watts. My current 2A3s are purposely designed to output 3 Watts. In both cases, my percentage of large scale orchestral music listening has increased. Note: this is also due to and dependent of other system based changes.
My room is 19 ft wide (front wall) by 26 ft long by 9 ft tall.
Given what I’m hearing across a fairly wide range of music genres, for my preferences and needs AND room size, I would not want to go below 3 Watts. Again, this is for a very wide range of genres. If someone is focused on smaller scale acoustic genres, then lower output power will be fine.