I’d lean towards matched mbl amps for large mbl speakers if cost not an issue. That’s what dealers use. But otherwise in general you want a beefy amp with lots of power and current. I have very efficient BEl Canto ref 1000m Class D amps that might be had for reasonable cost if found used that would surely do the job well. They can pretty much drive anything to their max. I use them with a pair of similarly large Ohm Walsh speakers.
Congrats on those mbls. Set up well they are in a class of their own.
Congrats on those mbls. Set up well they are in a class of their own.