Owl1, those Macondos are insane. They provide food for thought, but my fairly tolerant spouse would vomit and make me clean it up. Still, the web site behind them provided some ideas for a more reasonable bespoke system.
Sfogg, two decades ago I had a series of Klipsh speakers, starting with Heresys, moving up to La Scalas, and ending with the big Cornerhorns. Really nice, but I don't think I can go back to them and still feel like I'm moving forward.
FrantzM, that's a nice suggestion. I'll search out a dealer. The 9SEs look fantastic, and have much better efficiency. I'd love to find a used set. (The guy that built the amps was targeting 96 or 97db efficient speakers.)