Need your recommendation on a 5 or 7 channel amp

I'm new to this site and not very well deversed on equipment so I'm looking for some good recommendations for either a 5 or 7 channel amp. My current home theater system consist of the following:
  • Sonus Faber - Sonetto III front speakers
  • Sonus Faber - C1 center
  • Sonus Faber - in wall rear 562
  • Marantz AV 7706 processor
  • Golden ear XXL sub
  • Sony 325ES projector
  • SI screen
Amps that I'm looking at are as follows and would like some input which to get or other recommendations:
  • Parasound A52+
  • Parasound A51
  • Audio Control Savoy G4
  • MarantzMM 8077
Thanks for your help!!

Legacy Audio i.Vx where x = number of channels up to eight.

“The i.V Ultra amplifier has handily outdone all other amps reviewed, regardless of genre, which is unprecedented. I invite the community to peruse the entire listing of amps I have reviewed from the past 14 years; there is not a one of them, not a single one, that I would prefer to be hearing. It’s not just a matter of being somewhat better, or in some respects having advantage, but rather a wholesale superior experience.”