I used to own a set of those. The classic combo is with Audio Research… like a Vsi75 or a Ref 75se amp. These would sound very different from what have now, rendering more realistically with mid range bloom and fleshed out nuance in the bass.. Tube alternatives: Conrad Johnson, VAC, and Cary. Alternatively Luxman would be a good choice with some tubed or not.
Here is a gross generality to think about. If you really like lots of details in your face and slam… then sticking with solid state and adding lots more power will tickle your fancy. However, if you want a more realistic sound (with all the details… just not in your face) and the bass more nuanced with great emotional content, then look to tubes like ARC…preamp and amp would be best. Or you can split the difference with Pass XA amp.
If you are unsure… go find a system run on tubes and have a listen. It is easy to think you want more details and slam until you hear a really good musical system. You already have a good set of speakers to head in that direction.
I am powering my current Sonus Faber (same sensitivity as yours) with an Audio Research REF 160… but in triode mode so it is only putting out 70wpc… sound great at at least twice the volume I would ever listen.