Luxman M900U any experience ?

Guys thanks for your feedbacks, with 90db 4 ohms speakers droping down to 2,4 ohms can i get away with 1 single M900u or should i bridge 2 of them ?I also wonder how the M900u would mate with the Nagra Classic preamp or any other very good tube preamp ?

@sandit33 Thanks for that post you made above. I heard the Luxman m900u today with the Luxman c900u and I just loved it. I am going to get the Luxman m900u amp but was wondering what preamp would work with it, other than the c900u. I want to get a preamp with a DAC and DSP so your recommendation of the Linn is a good start. I am considering the Linn Selekt DSM,

https://www.whathifi.com/reviews/linn-selekt-dsm-review

and the Anthem STR preamp.

Received yesterday, great w/MG 3.7i's & Sumiko S.9 subs.
 Using w/ARC 5SE.

I was talking to some dealers of both luxman and other brands like pass. And I was amazed to hear people with high end pass labs trading for m900u! Some guy traded his XS300 for dual m900U and another dual X260.8s for a single m900U! Is the m900U that god like? I get system matching is a factor but still this is insanely impressive.

Just work through whitecamaross's long thread and look at all his comments on the m900U.