The Maxima Amator is quite the speaker. I had the Nova’s before and for my tastes the Amator is different but better in the sense of driver integration, probably due to the crossover design, and for how well they stage. The Amators disappear, and vocals, piano, strings are simply beautiful, slightly warm also due to the real walnut box. The Serafino and Nova are much better in dynamics and bass punch. They both fill rooms well, super musical speakers.
I’d think big transistor mono’s for the Serafino or Nova, and something like tubes or class A, like Audio Research or Pass for the Amator line. Generally the SF team uses Audio Research and McIntosh to voice their stuff.