The one argument I can see for modern speakers is materials: theoretically we can have better materials science-- better foams and rubbers for the gaskets and such, better insulating batting.
However, it is frustrating that I can't get modern speakers anything like my parents' three-ways with a 12 or 15 inch woofer without finding some esoteric offering.
> However, it is frustrating that I can't get modern speakers anything like my parents' three-ways with a 12 or 15 inch woofer without finding some esoteric offering.
You can get "modern" builds of the very same loudspeakers right now with major brands like Klipsch - https://www.klipsch.com/heritage-premium-audio The AK6 is still considered by many to be the best loudspeaker you can ever own.
However, it is frustrating that I can't get modern speakers anything like my parents' three-ways with a 12 or 15 inch woofer without finding some esoteric offering.