Thank you for the compliment on the Cyber 100 Signature KT88 15th Anniversary amplifier, Mariusz. I appreciate it. I should have the first coming into the country next week, and feel quite excited about it. It basically represents Consonance's all out assault on building a tube integrated (pure Class A operation, upgraded power supply, special caps, and I would presume, better (amorphous?) output transformers). They claim SET performance out of a push-pull amplifier, so I'm curious to see what they can turn out when swinging for the fences.
So long as you give the JJ Blue Glass E34L a truly thorough round of testing, I would not hesitate to use them. Again, they are my favorite current production output tube, and I personally believe they can create a magic in the midrange that is almost without rival. In my Jadis DA60 integrated, that was the case, but it was a toss up as to whether or the powerful low frequencies the JJ KT77 produce. Not until I found the right compliment in terms of a 12AX7 driver for the E34L, which added the thunderous bass to that magical midrange, was I totally satisfied.
It sure would be interesting to see how far the amplifiers with Bob's modifications can stretch out with such a tube. One never knows until they try, but they may well prove mind blowing.
Personally, I advocate fuse protecting an amplifier at each of the output tubes the way my Jadis DA60 does to take into account the fact that there exists an element of Russian Roulette in vacuum tubes. It's an incredibly cheap insurance policy. Folks against it argue that one cannot help but pay a sonic price. I can't say that you don't, though hearing the Jadis leaves one to wonder how much better things could get without such protection. Haven't tried upgrading the fuses yet, which given the location of them I believe must make a profound difference, but I will at some point.
So long as you give the JJ Blue Glass E34L a truly thorough round of testing, I would not hesitate to use them. Again, they are my favorite current production output tube, and I personally believe they can create a magic in the midrange that is almost without rival. In my Jadis DA60 integrated, that was the case, but it was a toss up as to whether or the powerful low frequencies the JJ KT77 produce. Not until I found the right compliment in terms of a 12AX7 driver for the E34L, which added the thunderous bass to that magical midrange, was I totally satisfied.
It sure would be interesting to see how far the amplifiers with Bob's modifications can stretch out with such a tube. One never knows until they try, but they may well prove mind blowing.
Personally, I advocate fuse protecting an amplifier at each of the output tubes the way my Jadis DA60 does to take into account the fact that there exists an element of Russian Roulette in vacuum tubes. It's an incredibly cheap insurance policy. Folks against it argue that one cannot help but pay a sonic price. I can't say that you don't, though hearing the Jadis leaves one to wonder how much better things could get without such protection. Haven't tried upgrading the fuses yet, which given the location of them I believe must make a profound difference, but I will at some point.