SET 45 Amp Driving Dynamic Speakers

A 45 if used just on a mid horn of 106db plus is a wonderful thing and if possible one should try to hear such but if poster enjoys the 45 with the AN nothing wrong with that. 2nd order can sound good to the ear. Enjoying our system choice is what its about not if its optimal or not, so if you like it dare I say its right.

Yes the main point is it is not "ideal" but yet another compromise with trade offs that some perhaps many might easily live with.

A watt or two can also go much further when highest and lowest octaves are rolled off. That’s a reasonable trade-off as well that some systems might offer over others. My decent sounding table radio works that way. :^) Midrange freaks can be in nirvana for not as much. you might even hear things in recordings not heard on many much larger and more powerful systems.

Or if size and cost of speakers is no issue, and you are not adverse to large horns (good ones are very pricey), then you should be golden in the end with just a couple precious watts. Now that’s an option I think I might definitely be able to live with in the right house/room designed with that in mind.  But its not where I am at currently.

Inna I don’t think your automobile analogy applies to the OP’s situation , it seems rather you have projected your own specific desires and preferences.
If anyone reads his comments carefully it’s very evident that he’s quite happy with the performance of his system’s sound quality. It seems that Larryi recognized this obvious point. Others are suggesting that they wouldn’t be satisfied with this amp-speaker pairing( peak volume  limits?).  That’s fine however they aren’t the OP who happens to be very pleased with what he has. I can certainly understand why he is.
Charles,

100 db peaks is definitely desirable in a good hifi system. In fact it should be a basic criteria while choosing the speaker-amp-room combo. But 100 db continuous SPL is very loud. 

Charles, I was not talking about the OP's situation and preferences. My car analogy was intentionally grotesque and should be taken as such. I wanted to emphasize particular points not discuss the subjectivity of one's happiness.
I too could have SET low power amp based system but that would not be my main system.
Let's not drown in subjectivity because that would be the end of a potentially interesting discussion. Most of the time Audiogon is a very boring place.