I actually had the vibe that the SP10s might be a speaker I’d like to own...along with ones I already own. In fact that was one motivation for listening to them, not out of dissatisfaction with my speakers (Thiel 2.7 and Joseph Audio Perspectives) but, because I like having different sounds available. Among the many speakers I’ve auditioned the SP10s had a promise of being a sound I might quite like as a second system. I wondered how they would sound with my CJ Premier 12 tube monoblocks. The main thing that would give me pause is the bass response I heard from the SP10s, at least in that room, really did border on being able to overwhelm the room. My sense is they will appreciate the grip of a solid state amp. But...who knows? (One of my favorite amps/speaker combos was my old Eico HF 81 14W tube amp with my MBL 121 Radialstrahlers!)
Once I saw them in person I pretty much wrote them off as a permanent speaker for my use. In my room they would not fit well aesthetically, so they would definitely be a "put them in to the system sometimes" kind of thing.