The best speakers to pair with McIntosh MA7000 ?

Try the MAGNEPAN 3.6r if you have the room for them I used them with my MA700 they sound fantastic.I had a MA6900 the MA7000 is better hands down in every way.

Sonus Faber. Choose a model that fits your room and budget.

Sonus Faber will do partner well with the MA7000.
like cappuccino said, +1

Why do recommend Sonus Faber? I'm currently considering Sonus Faber Cremona (or maybe Liuta) vs. Focal Electra 1028 or 1038. Would like to hear your thoughts. I heard McIntosh on Focals and thought the highs were sublime and smooth (at least on their higher end models).

I am using Sonus Faber Guarneri Mementos with my MA7000 and the results are phenomenal. I would suggest looking for a used pair of these speakers or giving consideration to the newish Sonus Faber Cremona Auditor M's (The M's are better than the original Auditors) Properly set-up, the Auditor M's are unbelievable speakers and are well within the price range you have set.

Although these are stand mounted "monitor" type speakers, the imaging and soundstage are astronomical and the bass is 'full enough"

I am using a JL Audio F-112 sub with my Guarneri Mementos and together they equal supposedly full range speakers costing $50,000 or more.