6L6 or 300B or 2A3?

Just found this on TNT Audio's site:
"The Cicada is rated at 94dB/1W/1M, efficient enough for almost any 2A3 or 300B SET amplifier."

did not think they were that efficient ... I stand corrected ... if your room is big I still don't know if a 2a3 or 45 would cut it but worth a try I guess!

They may be to inefficient.The 45 only puts out 1.5-2 watts if
I'm remembering right.10-12 watts plus sounds more fair if its
not a large room.

My speakers are 97 db (Classic Audio Loudspeakers T-3) and I find 30 watts to be about the minimum, but I like to listen at higher volume levels (95db peaks).

A 45-based SET makes about 1 watt. You will have about 10% distortion at that power level, IOW you will not be hearing what the amp really can do- you need a speaker about 10 db more efficient than that (104db)! If you drive SETs hard, the qualities that they are known for will not manifest. A 2A3-based SET will only make about 3-4 watts, so you will still be limited by the power levels. Now if you had a P-P 2A3, then you would be making about 15 watts, enough to make things more life-like.

I was in the ballpark stating 1.5 to 2 watts for the 45 tube.
You would need speakers over 100db efficiency for them most likely.The 45 is an awesome tube though.Those vintage JBL's and Klipschorn's never sounded so good.With your speakers efficiency,I would want at least a 12-15 watt minimum amp myself.Wilson Audio is even happy with 15 watts on some of their mid-90's db speakers.45 links>>>>[http://www.nj7p.org/Tube4.php?tube=45][http://www.wavelengthaudio.com/low-watt.html]