Jadis amps and pre-amps still competitive?

I just dusted off and retubed my Jadis Orchestra Reference two weeks ago with a quad of JJ E34L tubes. The stock tubes are Ei KT90.

Oh my goodness! With the front end and cables that I didn't have a few years ago, the sound through my Coincidents was better than my Granites or AtmaSpheres. I mean, it was incredible. The notes were more tonally right than I have ever heard. It was perfect!

Trelja: A friend here also applied some bias adjustment to his DA5 amps following Jadis instructions. I am not a tube expert (my friend is), but I remember he placed the bias just in the upper limit for the EL34 and sound immproved a lot for the good.

Fernando

Flg2001, the DA5 is not autobias? I always thought that outside of the Orchestra and Orchestra Reference were autobias.

Although, I may know what you are talking about. I used to read that the JA200 had some kind of adjustment for "bias" on the transformer, which technicians would set based on the voltage coming out of your wall (whether it was 115V or 120V).

Nevertheless, as you said, I'm sure the amp sounded good!

Trelja: I have my weekly audio-buddies meeting and will get the specifics for you.

Fernando

I have to echo what Trelja said. I am the lucky new owner of Trelja's Jadis Orchestra Reference in a small office sytem. It has run about 160 hours on the new JJ EL 34 tubes and sounds better and better every day. Despite the accompanying equipment not being of the caliber of my main rig at home, it has a superbly pleasing tone and timbre, and as Trelja has said, the sound is tonally right and it certainly is a match for the much more expensive tube amps.
A wonderful-sounding amp. Of course, the big negative, and the only one, is the biasing issue, which, I suspect, may cost Jadis sales of this glorious piece of equipment.Obviously, it can be done, but is a pain.