It's interesting to me that you are thinking about moving off the W-5. It's one of the amps I've been thinking about purchasing. An amp you might want to consider is the Chord 1200E. Apparently, heat isn't an issue for you so you might want to consider Plinius. Also worth considering is the new Curl designed, Crump voiced Parasound mono's. I do believe the new Krell models are worth a listen. Every time I've ever heard the N802 / Krell combo the quality of the listening room made a fair audition very difficult. I didn't care for the N802 matched with McIntosh or Levinson.
After living with the W-5 what do you think you are missing?
After living with the W-5 what do you think you are missing?