Kinki Studio EX Series M-1 is in your price range.
For solid state amps, I have had three Parasound amps and could not be happier with the Halo A21. Tremendous power, great finesse. Never any hum or noise. I had a Odyssey Stratos and it was nothing but trouble, both with quality and customer service. For hard to drive speakers with lower sensitivity ratings, I agree sometimes solid state amps are better. I think the first 10 watts of the A21 is class A, and after that it switches to AB. The newer A21+ is out, so you may find great deals on the A21.
I'm also a jazz freak due to an extended "beatnik" personal phase. Read some of "atmasphere's" comments on why most SS amps sound the way they do, and you might want to stay with tubes. They just sound right. The only exception to this that interests me at all is the Pass XA25, and I might get one just to see what's what (I like Nelson's design philosophy). Otherwise, a single ended 12wpc tube amp with 99db speakers still floats my boat...spins my wheels...gets it done...cops the buzz...