Downsizing from Ayre MX-R monoblocks

A new system is a new system and you will be disappointed if you try to recreate something you had before. You're better off accepting your new system for what it is and try to maximize its strengths. The Sonus Fabers are an excellent choice and I don't think you really have to worry about upgrading them anytime soon. Because they are relatively easy to drive you have many choices. Krell, McIntosh, Plinius, YBA or Rowland would all work well, but I'm going to recommend the Pass and the Sugden integrateds. The Pass gives you the option of choosing between a lower wattage pure class A design or a higher wattage class A/B model. Sugden offers three different pure class A models.

A good friend & audio bud bought a pair of Sonus Faber Electa Amator II's almost 4 yrs. ago & wound up making them part of his main system, replacing Aerial 10T's.

He started out w/a BAT combo which sounded great but moved around the gear from his other system and currently is running a big MAC SS amp & Hovland preamp. Although I haven't heard this latest iteration (he moved out of state), we both have very similar tastes when it comes to the overall sound we're trying to achieve. This combo has proven to be the best so far, beating out Pass 350, Blue Circle Despina, First Sound Presence Deluxe mkll & a BC amp that burned up (reason unknown).

The Edge G3 is one of my favorite SS integrateds. Really floated images nicely particularly vocals, though I do not have first hand knowledge of synergy with Sonus Faber. I used with Mini Utopias with great success but ultimately preferred tubes, but great none the less. Good luck.

Good Luck with that!
;-)

Personally, I think you're going to have to make some major compromises on the sound. You're going from 300 wpc, $19K power amp monoblocks, which were combined with a $9K preamp, (for a combined total of $27K), down to a $5K integrated amp? And given the rarified air, (no pun intended), that the Ayre MX-R amps are at, (the reviews are nothing less than glowing from all reviewers!), I think you're going to need to heed some of the above advice and realize that you are not going to be as happy with anything else. If you can find any way of keeping them, I think your should, (even if that means finding something else to sell, such as a car, or stocks, or a kid or two! I am kidding, (again, no pun intended), on that last one!)

Good Luck and let us know what you decide to do!