Power for Focal Aria 936


Hi all,
Just ordered a pair of Focal Aria 936s. Focal reports a sensitivity of 92dB, but a minimum impedance of 2.8 ohms is reported:
https://www.stereophile.com/content/focal-aria-936-loudspeaker-measurements

So how much power do I really need to optimize these speakers (large room)?
Current budget for power is only $1K, either integrated or pre + power. I'm certainly open to something 2-4 years old used.

Thanks for any suggestions/thoughts.
islet
I also see an Adcom GFA-555se for $650 (purchased in 2015), and a pair of Emotiva XPA-1L mono blocks for $700 on Audiogon right now.
Any experience with those?
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So I've done some homework on the Schiit Vidar. One review mentions that low impedance at higher volume (which I do enjoy, especially as the ears age...) may trip the protection circuit.  http://www.ilounge.com/index.php/reviews/entry/schiit-vidar-power-amplifier
That makes me nervous, even though sure seems like you get a lot for your money. Anyone out there using the Vidar to drive the 936s?
Any thoughts on the Adcom or Emotive options above, or other suggestions?

Is your budget $1K for just the amp or you need an amp and preamp, or an integrated amplifier for that budget? If the latter, I'd suggest looking into Vincent and they have a couple of models that should fit your budget. Or maybe a Parasound Halo integrated. If the former, I think you'll have to be patient and see if something comes up for sale in the used market, probably a vintage amplifier, that can handle a 2 ohm load on a sustained high volume scenario. I picked up a McIntosh MC2200 - later bought a second one, for around $1K and really like how it sounds with my Martin Logan speakers. Many newer moderately priced high powered amplifiers tend to get a bit grainy when they see higher loads (lower impedance) at high listening levels. Your speakers are really good and they can shine when fed properly. Good luck.

Hoping to stay as close to $1K total as possible. Looks like I can get a new Parasound P5 and 2 year old A23 for around $1400. Erik recommended that above.
I see a McIntosh MC7100 listed for $800. 
Older Mac vs newer Parasound...thoughts?