In SET amps as with many others, all watts are not created equal. Other aspects than simple output figures determine abilty to drive real speakers. In particular, the size and quality of output transformers is a factor. Now they are heavy and expensive, so in simplistic terms, the more you pay for an amp, the better it will drive speakers for a given output.
AS Ultrakaz says speaker impedence is very important for SET's, the speaker may be quoted at 8ohm impedence, but have nasty dips to 2ohms in the frequency range. A SET won't respond well to that.
The answer, try your speaker and SET together preferably in your own rooml, see how they match.
AS Ultrakaz says speaker impedence is very important for SET's, the speaker may be quoted at 8ohm impedence, but have nasty dips to 2ohms in the frequency range. A SET won't respond well to that.
The answer, try your speaker and SET together preferably in your own rooml, see how they match.