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

I am thinking about trading my Pass Labs X250.8 amp and Simaudio Moon Evolution P-8 Preamp

Luxman M-900u and C-900u

I was looking at new ARC REF 6 and used Pass Labs X350.8 but the dealer swears for same money he can get me this Luxman combo brand new and it will be much better? He has never mislead me in the past.

What do you guys think?

I will be using with brand new Magico S5 MK II that are being delivered this week. I don't listen real loud and also use Bricasti M1SE DAC and Kubala-Sosna Emotion/Elation Full Cable Loom.

Please anyone that knows or has an option please let me know your thoughts.

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I had a C900f and now have an ARC Ref 6. I would never go back to Luxman. It is refined but way too soft and dull IMHO. I know it's all system dependent and YMMV but I find Pass (had 250.5 amp) and ARC much more transparent and 'accurate'. In term of resell value, I had a hard time selling it on used market and had to swallow a big drop in price. I have been very disappointed since prior to buying my Luxman preamp I had heard only good things about them. My dealer is no longer selling their products.

From a support standpoint, I had to contact Luxman for technical questions and despite many attempts to talk to them, I never got an answer. I heard similar complaints from dealers selling Luxman products. So it's only my -poor- experience dealing with them and others may have better stories to share but clearly I doubt it's the level of service you get from brands like Bryston or Pass Labs.

My 2 cents

Guyl, thank you for informative and honest post. Based on the hype I bought Luxman 509x and it sounded like hifi device in my system, yes refined, but dull and strained at higher volumes. I went back to pass (pass int-250) and now I hear music. I think some people on  different forums pushing Luxman a lot. Granted I did not hear their separates but will not buy at this level anything without audition in my system or trusted dealer.


Great info.
Thank you


So my new Magico S5 MK II Speakers that I ordered on November 11, 2018 were delivered and installed in my room 3 days ago and I am psyched.

I never ordered speakers brand new and had them made for me before this way just like I want them so the wait was not fun but the idea and process sure was.

They sound totally different then original S5 which is kind of odd. They look similar but sound nothing like the originals. They have totally different drivers, cables, crossovers and the cabinet looks similar but is totally different so I guess it makes sense but I was thinking more of a evolutionary sound then a totally different sound but they are nothing like the old ones. Still burning them in and will be for the next month or so but they are awesome and I am psyched. 

For the amp choice I decided to go with Pass Labs XA160.8 Mono-blocks because I love the Pass sound and the company so hopefully they are just a nice upgrade from Pass X250.8.

I appreciate the info and help on this thread. 

Keep us posted as you massage these new Magico speakers into your room/space.  Happy Listening!
Thanks jafant,
I love my new Magico's and LOVE my new Pass Labs XA-160.8 Monoblocks.

Pass just works for me. I know there are better this and that I just have always like Pass Labs.

This is my 6th or 7th Pass amp when counting my First Watt amps. I thought about others but glad I stuck with my gut. I love these amps or maybe it is my new speakers that I love or maybe both but either way I am psyched. 

Now I am thinking about try another preamp.

Thinking about trying a non tubey modern tube amp?

Was thinking about maybe ARC 40th Anniversary preamp?

Not sure just one of the ones I am thinking about.

I have Simaudio Moon Evolution P-8 pre and really like it but want try something else.

Have not had any tubes in a long time so thinking about trying one. 

Anyone know anything about these?