Please help to chose Integrated amp Diablo 300 , darTZeel CTH-8550 Or ....

decided to try out myself, just got  darTZeel CTH-8550 used in awesome condition . now let me see if it plays as good as it looks :)

I have vitus sia 025 partnered with chord dave. Compared vitus
with diablo 300 before buying, very close fight, could have
gone either way but decided on vitus for its more intimate
midrange and it makes lousy recording more listenable.

I'd be interested in your thoughts regarding your darTZeel CTH-8550.
Have you heard the Diablo 300?

If you have not read this forum there could be some good information here: https://forum.audiogon.com/discussions/upgrading-form-pass-integrated-amplifier-to-a-better-one

Hi 
I have auditioned to  Diablo 300 prior to the  darTZeel CTH-8550 purchase.  Overall i did like  Diablo 300 , found it dynamic and engaging.
To me it seemed to add its own musical tone and coloring , to be hones i did like spice spice that id added to the music. 
After listening to  darTZeel CTH-8550 i find it even more detailed and bit less colored compared to the Diablo. Music flows more effortlessly and i find it more organic and true to the source. I almost can feel that it has less electronics in its signal path compared to Diablo.
Diablo build quality is very nice but  darTZeel CTH-8550 takes it to another level. Holding remote is like holding a gold bar. I wish it had bit more on the bottom end ( could be my preference ) but i have REL 212 going with Sopras and its a very nice balance.