Help choosing integrated


I'm currently shopping for an integrated amp for my main system. Got a few integrated amps on my mind. Since I haven't had a chance to audition all of them so I would like to learn from your experience and get your input before making the final decision. Here is my short list (all used):

Gryphon Diablo
Vitus RI-100
GamuT Di150
MBL 7008a

The rest of my system includes:
MacBook Pro/Audirvana
Anticables 3.1 USB cable
Hegel HD 25 DAC
Focal Diva Utopia Be
Synergistic Research Tungsten Interconnects
Triode Wire Lab Speaker Cables 

Thanks in advance for your feedback!
jjue
Ditto Waltersalas recommendation on a quality tube integrated (Leben, VAC and Line Magnetic are good choices).  If tubes aren't an option, I'd be looking at class A solid state amps from Accuphase and Luxman.  The Gryphon is also a great option, but I don't know if they have a decent service network in NA.
Thank you all for your feedback!! I pulled the trigger on the Vitus :) Will keep you posted on my impression. 
I love my Pass Int-60.  Class A for the first 30 wattts then goes to B.   
Heat output is moderate to low, nice remote, and exceptional build and looks.
And at 6-7 K it's reasonable for what you get.
If you like tubes ? Try the Ming Da 368  intergraded  KT 120 or KT150 . The money you saved put a deposit a Mercedes AMG Gt, and still have some change left over.