To all in this thread that have help me I thank you all. Now I finally know if my Diablo is powerful enough.
Short answer is YES!
My ear tolerance level is Turbo at 1-2 o clock. 12 oclock again is comfortable.
First impressions.
But sound quality the first 10minutes. Not as bright with Arya, a little better lowend. I guess I have the same problem I had with Arya. After buying Forza Audioworks cable it opened the soundstage more.
It feels like these stock cables from HifiMAN sounds centered and warmer. I like bright and wide, so I guess TT2 was a great choise for the Susvara after all.
I switched to Forza Audioworks, it does feel a little seperated/spacious. The Music feels more in the head vs Arya which has much more soundstage.....hmmm its like it has a certain Susvara box(room).
This is interesting. Susvara sounds like it owns the music...or laidback as I hear alot. Relaxed. "Bring the music, its easy"
I hear I see this Susvara room, the box, the soundstage. It puts me in this room. I hear the vintage, I hear the organic sound, there is a certain signature. I think I will be able to tell them in a blindtest.
...But the Susvara catch me by surprise on certain tracks. It is 100% different than Arya. 1000%.
Back to iFi Diablo. Now I understand that the treble "harshness/distortion" or this attempt to sound warm kinda thing(mid-high)...is not Diablo, its the Arya. Diablo only needs to find the sweetspot(volume imbalance) on the volume knob.
Diablo sounds amazing, even on Turbo/SE. Damn what to expect with 4.4 balanced. WOW!...Forza Audioworks(Claire Mk2) ordered for this.
Thank you all! They are very close to what I expected = Goosebumps!
EDIT: This stock cables are an embarrasement. I rather se no included cable. Its a scar to see these "waterhoes" "tubes"
I always touch the diablo to see if it gets warm. It never does with Arya, but with Susvara ooo yeah! So I see the discussion now about power, it needs alot of headroom of power to keep cold as with Arya.