What is the most powerful SET tube amplifier?

So Chazzbo whould you still stay with SET or something more efficient?

Dweller may be thinking of the CD-1610 that is rated for 55W per channel. That's the one JA from Stereophile ranted about as only being able t output 9W at 3% THD.

Yes 55 watts is correct for the Cary. Issue 15 of HI-FI+ (English magazine) shows another design using the same tube which is rated at 100 watts made by the "Metropolis" company. Sorry...

The Cary monoblocks noted 'informally' above are at http://www.caryaudio.com/cad1610se.html

Note that both the Cary and Bel Canto are driving their 845s into Class AB to get those power outputs, maybe even class B for the Cary. the 845 tube can only put out 27w in class A, at the bleeding edge (1250v), most are run at lower voltages. (1000v = about 22-23w in class A).

Fwiw,
-Ed