Hi, I have heard KLIMAX - on ML Summit X planars - direct comparison to Accuphase DP700.
As planars fan, I found KLIMAX much better, anyway have to admit this might be just the matter of taste - Klimax is really "airy" (is what I like on my ML Summits, so this is actually what I expect my gear sound like). Klimax really added space and melody all around you, but letting you pick whatever you wanted. Accuphase was more like "present", pushing the music towards you - you know this kind of Wilson or Focal feeling.
As I have also owned B&W for few years, I am not sure, if Klimax is something for you. From your system - I think I know, what you appreciate in sound - this "rock&roll", but on the other hand - no other Streamer is near to Klimax.
What I personally made - I am happy with my sound (ML Summit+ Theta Digital gear), so last week I purchased Linn Majik DS and let it go digitally to Gen VIII. Is better than any CD transport I had up to date.