Personally, I think you are a perfect candidate for a Jadis Orchestra Reference.
The brand has been pretty well decimated here in the USA, and you are able to find them here often on Audiogon, at 50% or less of their original price.
I own one, and feel it is one of the best tube integrateds made. It does not eclipse their more upscale integrateds, such as the DA60, but I find the overall package better than just about any other tube integrated I can think of.
You are getting a serious amplifier here. The Jadis transformers are about as good as you can do, and the quality and power of a tube amps transformers is important beyond whatever I could convey to you. The power, bandwidth, bass extension, etc. are a direct reflection of the amp's transformers - it couples the amp to the speakers, analogous to the tires on a car. And we all know how critical good tires are.
The amp is a bit sweet, and a touch lush, but not all that much. The sound I am describing is with the KT90 tubes. Switching to KT88 or EL34, which the amp can also run would push it to a more romantic sound for anyone looking for that. 6550 would take it to the leaner side. My KT90s have about 6 years on them, and while I may be getting close to their end of the road, that is a lot of life for a tube amp.
I have been on a pretty long audio journey and other than power, which it betters any other 4 tube integrated I have come across, I frequently wonder if it I can do better without going really far out.
Build quality of the Jadis matches its parts quality, which uses some excellent caps, gold plated ceramic tube sockets, huge OFC wound transformers. The tone controls are a cool feature, you can take the edge off or brighten up a recording, or add a bit of boom when your non audiophile friends demand it.
The only complaints I have with the sound are with the gold plated finish, which is difficult to clean and keep pristine and the overly involved bias procedure.
