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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

Showing 1 response by gerrym5

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gerrym5
286 posts
 
I've owned both JA-30's and JA-80's (numerous NOS KT-88's, EL-34's and KT-90's) when I had Crosby Modified Quads and they were great sounding amps. Yes the music and picking speaking to fit that music are the two most important things to do. I switched in the nineties to Wilson's and two Audio Note Ankoru's (PSE, two 845's for output and a 300B for voltage driver for each mono amp). Miss the quads at certain moments, but the Wilson's with 845's fit my taste much better all around than anything I could do with the JA-80 with any KT-88 or KT-90 tube type. The 845's are my choice for amps now. Perhaps looking at Wytech's products might produce music magic at a sensible price. Speakers must be >91dB sensitivity or better. Take a look at Coincident Speaker Tech for a speaker you might like with your tube choices.

http://www.coincidentspeaker.com/
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