I'm with Mfgrep. I have the SF Electa Amatours (originals). After trying several S.S. amps I too wound up with the CJ Premier 11A. The difference between the CJ & all of the S.S. amps I tried was literaly night & day. Tubes really get the Sonus Fabers to sing. I've owned solid state amps for several years & once I made that transition to tubes I personaly could never go back to S.S. Talk to Jim at Sumiko. He uses the C.J. Premier 8 monos with his own personal Extremas. Theres a guy who is in the Industry... has the opportunity to try just about anything & wound up with tubes. Because of the inefficiency of the Extremas, tubes are going to be more expensive but well worth it. You guys using S.S. owe it to yourselfs to try tubes. You won't be sorry..
