High End Audio in Portland Oregon

I echo Joman's recommendation and I would also check out Pearl Audio in the Pearl District (great place to spend a day), Stereotypes and Fred's east of the river and The Audio Gallery in Lake Oswego. There's also Magnolia and Chelsea Audio/Video in Beaverton.

there is also chambers audio which i believe is a'gon member Jtinn's business. they are by appointment only though.

Stereotypes is a great place to start. I've bought a number of things there over the years, and they are great people. Knowledgeable and reliable. Fred's is also a good choice, and make sure to visit Echo for a good selection of used gear.

I would only add that there is also Dynamic Contrasts (Jstehno's business), who is also an a'gon member and a dealer. It could very well be worth the effort and time to head down to Salem and audition John's setup. (contact him first: jstehno@comcast.com)
Rstan