cost no object integrated amps

@infection

@thebingster

@gestalt

@duckworp

can one of you or each of you help in describing the sonic output of these amps (vitus sia-30 or dartzeel or others). i know its system dependent but as much as you can

for example d’augustino momentum ,luxman are characterized as sweet, musical, bit laid back , less solid state ,slightly tuby etc etc

everyone has their preferences but i am looking for an amp that is less sweet , less warm ,less colored, more detail and resolution oriented.

its ok if its a little dry or clinical or analytical to obtain a high degree of resolution , clarity , details air, separation, crystalline, clean and crisp highs/treble

i definitely don’t want to end up with a warm and sweet amp in the name of making it sound analogish or removing the harshness or fatigue.

Pass labs class A amps. Nothing else even comes close. 

Re your question.   I know what you mean re Luxman and a warm sound.  I directly compared a cheaper Vitus with a 2-box Luxman here: https://pinkfishmedia.net/forum/threads/a-review-of-some-amps-on-home-demo-naim-v-luxman-v-devialet-...

The SIA-30 is not warm sounding. In that respect it is neutral.  I would not call it clinical either.  It has tremendous air and separation and a very controlled and extended bass.  The SIA-025 by Vitus is a warmer amp with a softer top-end, the SIA-030 meanwhile throws out a precise treble with a very clean sound.  The leading edges are not over-represented, like in the sound of Naim amplification, but they are presented more naturally which helps make the amp more musical sounding to my ears.  Dynamics on the 30 are strong with a fabulous speed of dynamic expression from the blackest quiet to the loudest notes.   Again this is in another class from others I’ve heard.  
Interestingly the amp has 2 class settings and also a 'rock' setting and a 'classic' setting.  Whilst I tend to keep mine in 'classic' the rock setting does give a slightly more upfront presentation which suits that genre, a bit more PRaT with very fast transients.   'Classic' has more air and grace.   It’s a subtle difference though.    The class A setting is preferred for me most of the time, but I do listen in class AB at times as I find compressed modern pop sounds better in AB.  It takes a good 20 mins for Class A to work its magic though, as I leave mine in AB mode and it’s not an instant switchover. 
Good luck in your search. 

OP,
Based on your stated preferences, Gryphon sounds like what you are looking for, or perhaps Boulder. You should listen and decide because everyone hears differently 

thank you @duckworp for the sonic description of vitus sia 30. definitely confidence inspiring to consider sia 30 

thank you 

@bvdiman  @audioman58  @georgehifi @palbrecht1 @kren006. gryphon seems a crowd favorite as well.heard it has darker backgrounds, great bass and is a dynamic and muscular amp.

can someone comment on high frequency rendition for gryphon diablo 300