I use Krell (ss) and Music Reference (tube)
The three amps you've listed are all good choices. My recommendation is to try each one. Each amp will sound a little different.
I use either a Krell or Music Reference amp for my ML Sequel IIs. Both sound great to my ears but each has a different sound.
I really like the Krell because I felt the Krell's signature (of strong, tight bass) was a good balance for the Sequel IIs.
However, the imaging and silky midrange Music Reference made a lot of my music sound incredible.
I would advise you to try to listen to the amps and buy the one that sounds right to you.
Best,
Alvin