What tube amps for the Quad ELS 63

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).

To come back again to this old thread:
Curio, I agree with you. The JA 30s are sublime. However they won't quite be able to tickle out the (already somewhat limited dynamics)of the 63s in comparison to what the JA80 were capable of, if tubed right-vide Greg's post above.
Cheers,
D

Music Reference RM10 MKII.

The speaker needs an amplifier that can do a good job of making constant power with respect to its impedance. The reason for this is that the impedance curve is based on a capacitance, and so is decreasing as frequency increases. At the same time the impedance is quite high in the bass region, and many amplifiers will have difficulty making power at these frequencies as a result.

So. much like the 57, but with greater power handling ability, the speaker has always been a good combination with OTLs, going back to its initial introduction. OTLs are one of the few amplifiers that can make power in the bass region of the speaker, without sacrificing the highs. Its been my experience that the speaker can manage 100 watts alright, and it seemed a lot more fun with the extra power.