Any real experiences with a Luxman C900u and C10x?

First off, I have to say I am not fond of Luxman solid state equipment. I have listened to it a lot and it is lean and lacks midrange bloom and rhythm and pace. This amp is like that. However it has deep power reserves and sounds “high end”, particularly when mated with Luxman solid state preamps. The high end nature conveys a sense of transparency and exceptional detail, also looking great. But many people love them, presumably for these reasons.

@ghdprentice Appreciate your response.  What speakers were being used with the Luxman gear you've heard?

Also do you have any experience with the two pre amps i mentioned?

For speakers Sonus Faber, DynAudio, and Magico. 

I have heard the C-900u, and a variety of the L-509X lines. Also the M-900u and M-10X. They all have a very distinct sound signature that are very similar with increasingly lower noise floor and more dynamic presentation. If you really like the Luxman presentation, you can be sure buying the higher tier model will sound better. 

I prefer more balanced and musical presentation. If this interests you at all,  I would recommend looking at an Audio Research, Conrad Johnson or VAC preamps if what I am saying appeals to you. These are more musical and natural. The best place to start to get a musical presentation into your system is through a warmer and more natural preamp. 

If you do not have much of a choice in dealers. Then consider a trip to go listening to some other equipment. Just to verify you are on the right track. On a Saturday or Sunday I have been known to drive a couple hundred  miles to an appointment or two at a distant high end store for some auditioning. On business trips, across the country after work is done. 

Thank you @ghdprentice.  I definitely have a liking to the luxman sound signature.  I have a 509x which i'm using as a preamp and phono amp.

With my new M-10x and to get the most out of it I want to a dedicated preamp and phono amp (looking at the Chord Symphonic or Luxman EQ-500).  

The EQ-500 has been discontinued, so you will likely have to look at the used market to get one.