SS Amp for Avalons

Symphonic Line Kraft monos for solid state.

For tubes, I have not heard anything that beats the CATs with Avalons.

Although I've owned Avalon/Spectral and heard it many times at dealer, I preferred Avalons with BAT tube monoblocks or Atma-Sphere monoblocks. The BATs had more bottom end power but the MA2s had a great mids & treble particularly on acoustic instruments and classical music. If you are a rocker, BAT might be a best choice. If SS, I agree that Symphonic Line and Pass are some of the best options. Cheers,
Spencer

my favorites are Ayre and Audio Research

The CAT amp may have all the power and finesse, depending on room size and music preference.  I heard Ascents driven by Gryphon amp.  It was unforgettably good.  I have found the Diamonds to be revealing, requiring careful component and cable matching.  

For years I never did get the Avalon presentation at shows but in the first ten minutes of listening to my standard Eidolons at home I got off the merrygoround. 

I've herd them powered by Ayre V-1xe stereo, MFA D70 stereo, VAC Phi200s, freshend up MFA M-200s, and Carver VTA180s all off their 4 ohm taps. Unfortunatly, I was unable to do side by sides comparisons of the tube mono's.

The D70 demonstrated the need for more power for listening approaching realistic levels. I agree with siddh these are revealing speakers were everything matters. Even though the three high powerd tube mono's each have their own presentation my poor sonic memory prevents me from picking a favorite so I picked the ones made in America. Does that help?

Use the spikes, that port needs to breath.