Magico, Tidal, Von Schweikert, and Rockport (etc.) all utilize advanced enclosure technology. Tidal and Magico especially use very advanced speaker cone technology. Crossover components are also improved vs 20 years ago.
How they sound in comparison? I am a relative noob and don't have the experience many on this forum have, but the technology aspect is one of my draws to this hobby.
You will definitely pay a premium for the most advanced technology, doesn't necessary mean you will like it better though.