Luxman m-900u owners - quick question

Mine is here to stay. May be the best value uktra high end amplifier. Very tuby highs, world class solid state resolution and dynamics, huge soundstage. A lot of meat on the bone midrange. Class A up to 12 watts wich is huge. 

Emit some heat even at idle.

Hello techno _ dude ..thank you and what pre-amp are you using ?

Mac C52

There is a lot of discussion on the Luxman m900u on this thread.

https://forum.audiogon.com/discussions/my-long-list-of-amplifiers-and-my-personal-review-of-each

Yup, whitecamaross is your go to guy for this beast

I have two setups, each with an M900u in the chain. Only one of them is with a C900u. Both setups use a Chord Dave as a source. Running the dac directly into the M900u is a different sound than through the C900u preamp. To my ears it requires a quality preamp like the C900u to unlock the fullest potential of the Dave. The sound with the C900u in the chain creates a more dynamic and palpable sound with more texture. Running the Dave directly into the M900u works fine, but it doesn’t have the same emotional impact, and I have a harder time connecting to the music. This is of course just to my ears and YMMV etc.

Have you considered an used M800A?, puts more in Class A (and heat) than M900u and outperforms its own spec by margin as measured by Stereophile. 

I also have M900U and C900U. Had Jadis and other hi quality tube amplifiers in the past and now switched with the Luxmans to SS. I am very happy.   

@garebear did you ever hear about Coda 15.5?. Class A up-to 100 Watts into 8 Ohms and then Class AB till 150 Watts into 8 Ohm, less than 50% retail compared to Luxman M-900u btw. If you want to compare options and want first watts to be pure Class A.

I can concur with nebob's findings but while driving my M-700u with a Chord Dave versus the C-900u.  The Dave was slightly more immediate sounding but ironically at the expensive of the utmost control of the stands of the music. Soundstage with the C-900u was also much more enveloping, with greater ease yet oddly more drive to the music. I also found that the C-900u conveyed all the detail of the Dave in a more emotionally engaging way, effortless.