Soulution 511 vs. Luxman m900

No experience myself, but you might consider these comments by someone who's words I trust (Viber7).

https://forum.audiogon.com/discussions/merrill-audio-element-118-on-tour/post?highlight=ELEMENT%2B11...

Soulution 511 + 520 -- This is an exquisite pairing and is both very transparent and very resolving although not quite to the level of the Element 118. This combo is a touch warm relative to the Element 118. No amp was as fast as the Element 118 although I would not consider the Soulution slow by any means. In fact, directly compared against anything from Pass Labs and a Luxman M-900u, I found the Soulution (both a 711 and 501) to easily outpace those amps.

Certainly not a fan boy of any brand. Dont even own a Luxman Amp...never have. I do have a Luxman CD Player and a Pre-Amp...both of which are still in the boxes I received them in and have never been used. Since your reading comprehension skills aren't up to snuff the only brands I have Power Amps OR Integrated are: ARC 160M, Dagostino 400 Monos, Audio Note Jinro, First Watt SIT-3 Mono's, Pass XA-25, Valvet E2SE.

Get your facts straight.  Hope your still enjoying your 2nd Hand, discontinued, No Warranty T+A that nobody wants