Upgrade? Luxman M-900u and C-900u from Pass X250.8 - Simaudio Evolution P-8

There is no real comparison between Audio Research or Pass Labs and Luxman. Luxman is light years ahead, in terms of pure sound, transparency, delicacy, airy, linearity across the whole band, and the amazing ability to drive all speaker impedances with ease.
I have never heard components so good like Luxman or Accuphase. Simply, for me, they are the best audio money can buy.
I owned many luxman or accuphase gear. Actually I own Luxman C-900u and M-900u and the only separates that rival them are Accuphase’s top of the line monoblocks.
Except only one Accuphase power amp, I have never heard a power amp so good like M-900u. And the preamp is simply the best preamp I ever heard.

@cosmin did you compare to a pass labs amp?

Has anyone compared Luxman C900 to Conrad Johnson ET-5 preamp? I use a CJ ET-5 preamp with a pair of Luxman M900u, an excellent match, but I wonder if a Luxman C900 wouldn´t be a better match ...