As you know, Speakers / amp matching is very critical. If you are planning to keep Pass Labs XA30.8, I would connect one on one through PM with folks who own this amp and or folks who owns speakers you are considering and learn from their journey. The sheer size of speakers and shipping makes it bit difficult to audition multiple pairs. How is your local dealer network, can you audition any of these speakers locally?
Opinions on speaker upgrade choices
System as follows: Dr. Feickert Volare>Modwright Ph9.0xon analog side... Antipodes S30>Rockna Wavelight. Backend 9s Primaluna Evo400>Pass labs Xa30.8>Ascend Acoustics towers/Raal tweeters. Room is 12.5x21.5 with another 8x8 at back right of room. Have treatments at first reflection and rear wall. Budget in 10k range. Listen to all kinds of music from new age to Porcupine Tree! My first two choices are the Legacy Signature SE and the Vandersteen Treo CTs. I've also looked at Kanta 2. The Monitor Gold 300 is also a possibility? With system and room dimensions and musical choices how would you rank these choices? I would always choose musicality and would slightly lean to the warm side. Matching to the Xa30.8 could limit some possibilities.
Thanks for your time in advance!✌️