JADIS JA80 with 6550 or KT 88 or KT90 ?

Trelja,

I had used the EL34s on my JA30s and loved their delicacy so much so that I kept the JA30s as a back up when I bought the JA80s. For more power and bass, I went with the 6550A on the JA80. However, my Wilson WHOW subwoofer is driven by a separate (solid state) amp. Perhaps, the EL34's bass limitation may not apply in my system. The crossover on the WHOW is at 53Hz. At what bass frequency did you notice the EL34s begin to give up?

Great Listening,
John

Trejla , I feel I need to try the JJe34l in my JOR.
Now do you suggest I get the DA30 intergrated and experiement with 34 and 77's? Like you I am after vividness and brilliance, nothing flat sounding like the EH KT88's.
Will the DA30 accept 77's?
I'm not really interested in rollojng the 2 pre tubes in the JOR, as the changes will be too small to notice.

Trejla, I'm will to give up bottom end for brilliance in the highs. I do not like flat mids/highs. So that would be the E34L tube for sparkling highs/mids, correct? I also like very analytical sound stage, nothing mushy/all jelled together. Like the EH88 did.

Trelja is the most knowledgeable resource about tubes that exisists in my web travels and I have learned much from his previous threads. That said, I would still only re-tube a Jadis amp directly from Villedubert. Unless you never liked the sound of the amp to begin with.

Yes I just talked with Pierre, he said the best Kt88's are those directly from Jadis, but cost is $$$. I'll stay with the 90's. You know when you pick one tube over another, quality tubes I'm talking about, class A sound, you give up something for something else. What the 90's have the 88's lack, and visaversa. From talking with Pierre, the DA30 gives more power than the JOR, but I really don't need more power.
I'll stay with the JOR and get the Cayin 88 as a second amp.
The 88's in the cayin should be on the level that Jadis uses in their amps. And may be better than the EH and JJ tubes.
I'll post a note when the A88 arrives, mid summer.