ProAC 2.5 users please share experience on amp

I currently own both the ProAc 2.5s and the 1SC. The ProAc 1SCs tweeters are anything but hard and glary. I like a warm sounding speaker and after much auditioning settled on these. I also had a pair of Totem 1s which were very good and much brighter than the1SC (at lease in my room), in a head to head match up the 1SC sounded better so the Totems after holding the spot in my system were sold. Matching a tube preamp with a SS power amp seems to work best in my system and with many others using the 2.5s or 1SCs. I use an Pass Aleph 3 with a VTL 2.5 preamp with the 2.5s with excellent results in a modest size room. In any event both a great speakers, I find the 2.5 similar to the 1SCs but with much better bass and a fuller sound. Just a note good stand are essential with the 1SCs.