"American Sound" Speakers

... fan of Avalon and Harbeth, it's safe to say that this is my preferred sound ...

What makes you think Avalon (Acoustics) is British?

It is made right here in the USA (Colorado to be specific).

I think, if there is an American sound, that the stereotypical, (no pun intended!), American speaker is a full range speaker. And so the Avalon speakers, are a perfect example of said sound. (Americans tend to have larger houses, which are more spread out, and hence the ability to have bigger, louder and more bass heavy speakers. This is a generalization of course, but since we are using stereotypes, it makes since to generalize.)

My two cents worth anyway.

There used to be a difference in East coast type sound as represented by AR and west coast as represented by JBL. These distinctions are not as meaningful in the current enviroment.
But essentially JBL and Klipsch both used horns to greater or lesser degrees. They had/have are highly sensitive with a more forward, agressive, defined sound compared with the less sensitive British sterotypical sound wich is typically more polite, laid back, and sweeter. Many will fall back on the analytical versus musical peaker debate. My own experience having taken a liking to a very analytical speaker which is French (Focal) and hearing other French speakers which are more the musical type (Triangle) that I safely conclude there is no specific National sound!

Joseph Audio, Green Mountain Audio, North Creek Music

Interesting thread. Muzikat, what do you suppose Green Mountain and North Creek have in common? I own North Creeks, and have auditioned the GMA Eos (and HD); I find the former to emphasize sweetness and musicality, and the latter to emphasize detail and imaging. Pretty different birds, I'd have thought -- or maybe I'm just tracking a difference in set up. John

They are both American made speakers, IMO they are both very musical.