To be perfectly honest I was very disappointed in the performance of the 5910 and I sold it off after a year. It was "smooth" sounding but I found it to be lacking in dynamics and it had an obvious mid-bass deficiency. I heard from the gentleman I sold it too and his comments were very similar to mine. I still have John's Denon 2900 and I actually think it sounds much better. I replaced the 5910 by going back to a separate transport/DAC arrangement - both from Accustic Arts (Drive 1 Mk. 1/DAC 1 Mk. 4). The musical reproduction is on a completely different level from what I was experiencing. It still leaves me shaking my head in wonder - it is without question the best digital front end I've ever heard. I hate writing a comment like this because I think the world of John Tucker but you did ask me directly - the 5910 was a real non-starter for me. Perhaps after his success with the 2900 modification my expectations were too high.
Ken Golden
Ken Golden