Accuphase is indeed great stuff, I have owned many of their units over the year including most of their flagship amps and single box CD players (M-8000's, M-2000's, A-50V's, DP-700, DP-78, DP-77, DP-75V, DP-75). Also had plenty of McIntosh in secondary systems and played with plenty of Luxman.
Accuphase is in a totally different league then the Mac or the Luxman in terms of construction, build, and sonics. Also, when it comes to their digital players and big amps, they are at or near the top of the heap. I have also owned plenty of Boulder and while the 2000 Series is significantly better, the 1000 Series gets it's butt handed to it by the big Accphase stuff. That is saying quite a lot as Boulder is a benchmark by any standard.
I have used Accuphase with both Focal speakers and MBL 101D's and E's with great synergy.
The E-530 Class A integrated amp mention by Alvin above and it's replacements (E-550/E560) are without question the best integrated amps I have EVER heard and simply amazing.
For people into tuners, the T-1000 is an amazing experience and a perfect blend of analog tuning stages with a very unique method of deriving a digital output allowing it to be used with a mega-buck DAC. While a almost a contradiction of terms in the tuner world, a T-1000 driving a Boulder 2020 DAC is a religious experience in the world of analog tuners.