You love the speakers, & you're using a moderate power tube amp (I think--I'm not that familiar w/Cayin's), in a fairly large room.
Merlins. Merlins love tubes. The VSM's, or maybe the TSM's would work for you. I haven't heard SP 1/2's, so can't compare.....
Merlins. Merlins love tubes. The VSM's, or maybe the TSM's would work for you. I haven't heard SP 1/2's, so can't compare.....