What tube amps for the Quad ELS 63

Gotcha, Frank, thanks. The AR model I refered to above was indeed a monoblocks version. Sorry!

I used Golden Tube SE40s with very good results. I intiially used a pair running as monoblocks, but then went down to one - it did the job just fine with less heat, electric, and replacement tube cost.

Your best bet with the quads 63 would be a conrad johnson mv125 amplifier. this is 125 watts per channel & the richness you get out of this amp. is quite musical & revolving. I am using this amp with maggies 1.6 & the sound is natural & musical. Good bass & imaging also. I have been involved in audio for over 38 years. I owned original quads in Ca. years ago. Good luck Marvf5.

I use the Audio Research classic 60 with great results and also the Jadis Defy7 and of course the Quad II's

The Jadis JA30 KT88 monoblocks are sublime with Quad ESL63 and much better than the more powerful JA80.
Quad ESL63 don't need huge amps or lotsa watts.
The Jadis JA30 amps but with 6550GE aren't as good as the KT88 version (JJ Tesla KT88 highly suggested).