Integrated for Focal Electra 1028 Be

I am thinking of buying one of these (new or used) for my speakers :

Mc: 7900-7000-8000

Pass: INT 150

Burmester: 082 

Expereineces , opinions?

The Pass Integrated 150, 60 or 250 will be good. 

Also consider Simaudio Moon 600i or 700i.  Or Simaudio Moon i7 on used market (biggest bang for your buck- really good if you can find one).
Best of luck