845 Tube vs KT90


Thinking about auditioning/purchasing a 845 mono block, may cost me big money, so i'd like a few ideas on what to expect from the 845 tube image.
I have a Jadis OR with KT90 and really offers me pretty much what i love in my classical music, each orch section is heard distinctly from the others, IOW the sound stage has presence. However I've heard such wonderful comments about the "king of all tubes" the 845.
I'm wondering though, will the single 845 tube deliver the same separation of fq's as well as the dynamics of the mids are separate from the highs and lows. I do not like at all the image presented by the KT88 tube, nor the 300B tube for classical. Both from my experience have presented classical/orch as a flat one dimensional sound. A total flop.
For light rock , jazz, blues these tubes seem to be best.
So what should I expect from the 845 on classical, though I realize not every 845 amp will present the same image, inner components quality also play a big role. Just looking for general characteristcs as concerns the separtion of the 3 main fq's/lows/mids/highs.
bartokfan
Gunbei, I'm presently running with a Bel Canto SET40 matched with the Bel Canto SEP1 preamp. They work beautifully together. Classical music sounds beautiful to my ears...
Ahh, Warren, you're making it even tougher for me to hold out!! Heheh. How does your BC combo make your Zu 1.5s sound?

Another thing is that I really miss how the SET40 warmed up my room on those cold days!
Funny you should ask. I posted the answer to that question on the 'gon just today. You'll find it. It's "Nirvana at last?" And yes, I can keep my thermostat down a degree or two when listening to my rig..lol..
Tvad the CES would be an excellent opportunity for hearing the 845 , there should be at least several offerings on this amp at the show. But alas, one more yr not financially able.

I do not listen with the JOR's tone controls all the way up, only at 80% open. Basically the tone controls have 2 settings, ON/OFF , as they have very little sensitivity to change on the dial.
You'd have to chat with the local tech guy here in BR for him to explain it to you. He placed the tone 75% open and said thats where he'd listen.
What i'm after is a bigger amp, with more power. But i do not want to lose what the KT90 offers, which is one of the nice reproduction for classical music, to my ears.
Most of the fq's in orchestral instruments, winds/brass, strings are mid heavy, so the 845 may bring out these fq's in a way i like. But like someone mentioned above every 300 tube amp will have some differences. And so every 845 will have lend own character to the tube.. I guess its not so simple to convey what a 845 tube brings to orch music. It has to be experienced in an audition.
seems the CES show is the one place where alot of questions can be answered in hearing the different set ups, set/push pull, high sensitive speakers etc.
Thinking it over the Seas speakers (Thor, Tylers) are not going to be the ideal match for the 845. Its just my intuition. I may have to go with this combo Melody's big pre amp, the one that weighs in at 50 lbs!! and a used Jadis JA 80 monos with KT90's.
And be done with it.
I'm sticking with this game plan.

Bartok, is it ever reliable to convey via language what a tube, component, etc. brings to music? Still, wouldn't you, regardless of what beautiful descriptive language you read describing a tube etc., want to listen yourself? The CES show is your answer. A tough place, sometimes, to hear what is true. I have a good feeling that the 845 tube will deliver your goods. It does for me, at least. good luck and let us know what you discover. warren