Is Luxman a poor man's D'Agostino ?

I have the same CODA CSiB as @audioman58 but mine is a used unit from July 2018. I have Version 1 with the first 18 watts in Class A. I have heard the Luxman 509x and liked it but then I heard the Luxman m900/c900 combo on the same gear and the 509x didn’t seem that great anymore. The 509x is not that powerful. The CODA CSiB sounds better to me than the Luxman 509x. The CODA #16 amp is supposed to be killer but I have not heard it. Teajay compared the Luxman m900u and the CODA #16 and said the CODA was more powerful.

I am using the CODA on RAAL SR1a headphones that resolve like nothing else I have ever heard. I hear everything in the music with this setup and the CODA made the SR1a sound great (other amps did not do as well). I am surprised at how quiet it is. It is almost as quiet as my Benchmark AHB2 amps though not as crystal clear sounding as those. It is the Class A warm that is likely coloring things up a bit in what most would say is a nice way. I have also tried the CODA with my power hungry Thiel CS3.7 speakers and it sounded great with them. I prefer the AHB2 over everything but the CODA CSiB is excellent.

I have also heard D’Agsotino gear with a Wilson speaker costing over $100K. Dan A was doing the demo and explaining how he designs his gear. His design process did not win me over and the sound while good was not something I thought warranted the price. This was for $40K mono blocks. I have also heard other D’Agsotino gear at shows.

I will be getting a Krell K-300i integrated into the house soon and will compare it with the CODA. The Krell is for another floor stander. I have a feeling it will be at the CODA CSiB sound quality level and also more powerful than the Luxman 509x.

Luxman is a doorway drug. Not that I have ever inhaled. 

The Luxman has its own house sound.I heard the 505 mk2,
then. The 509 ,the 509 in class AB is more refined and fleshed out then the 505
very musical a bit warm, but theCoda especially the new design late 2019 has upgrades with latest FETs, And new type mosfet for the class A preamp section I also upgraded the  very good
preamp section the 2 multicaps replaced with VH audio New ODam capacitors ,I have these too in my dac a very noticeable upgrade , and the main fuse is a must a huge synergistic 🍊   16 amp slow blow 
The coda can supply up to 120 amps if needed ,I compared the krell 300i. , the Krell  crystal clear and dynamic ,but the coda sounded more true to what  a real instrument sounds like more depth and tone ,from complex orchestra , to a jazz quartet .  Coda   Separate 7 preamp ,do a search 
is great for $6500 retail one of the finest preamps I ever heard ,
for under $12000 you can get the great new Coda separates that are better still ,  with audio it never stops ,That being said I am a happy camper . Don’t forget a good power cord 

   "...bought Luxman listening to the amateur here on audiogon..."

Not many here are audio professionals.

Never was impressed with Luxman.

Auditioned them here in Dallas and ended passing on Luxman and McIntosh for Moon by Simaudio only cause I could not afford Boulder at the time.

To each there own. 
Years later went Tubular man.