brandiniLook for a used pair of Belcanto Ref 600 monblock, I heard them on a similar speaker with that Raal ribbon and was very taken for the first time with class-D.
Hoping for a recommendation for stereo amp around $1500 or less ($2k max) Ascend acoustics towers with RAAL ribbons
Because it was a very benign load that they saw with the speaker.
Same goes for yours as you can see the impedance is a very flat 5ohm and benign phase angle as well https://ibb.co/WWc65rh
Here's a pair don't know what they'll bring.
https://www.ebay.com/itm/One-Pair-Of-Bel-Canto-e-One-REF600M-Monoblock-Amplifiers/254899326719?hash=...
Cheers George