06-14-09: Redwoodgarden
Why did you switch from tube amps with their three dimensionality to the Pass XA.5 amp?
Because I could not find a tube amp that would produce satisfactory balanced frequency response on my speakers. The Pass Labs do the job.
I have owned and liked VAC Phi 110/110, VAC Musicbloc 160 and Atma Sphere M-60.
A good friend used George Wright AU-15 amps with his K-Horns. He claimed the AU-15 were the best amps he had ever heard.