I have been flying around Head-Fi around for a few days now trying to get some solid impressions, and finally figured I'd just ask the specific question to you fine folks.
I have recently acquired a set of HD800s via a pretty decent deal. I listen primarily to classical, jazz, folk, acoustic, with some classic rock sprinkled in. I got to audition the Senn's before buying them (while travelling) and they make lots of sense to my ears, especially for those first few genres.
My question is this: right now I am considering amping it with either the WA7 with the optional EH 6C45 tubes (I would also use the on board DAC), OR I would use a Soloist SL with a Resonessence Concero DAC. Now the general consensus seems to be that the Concero is better than the WA7 in terms of DAC, though anyone with differing opinions is encouraged to reply. In my case I wouldn't hear the other I didn't buy, so ignorance is bliss. So then, in terms the amp themselves... which would you have, and why with HD800? I get the sense both are pretty close to neutral, even though one is tubed and the other is solid state.
In my case both setups would be identical in price (1100 or so USD), and that pretty much is my ceiling for budget.
In terms of sonic preference, I don't require tonnes of bass, I like to to say I like adequate bass to give the music some body (I know, know, how much is that exactly, right?!?!). I do love me some fantastic mids, and I enjoy fine detail so treble is important. Of course soundstage is a priority, I think that's one of the main reasons to get these cans. I see many orchestras live.. so to be able to hear recordings and knowing where everyone is sitting and where the jackass is in the crowd that can't stop coughing is a very thrilling experience.
The ideal solution is to try both, but I live in an audiophile-barren corner of the world... so I'm appealing to the knowledge of those who know.