Compared to forty years ago, most speaker companies are nothing more than cabinet makers that toss in off the shelf drivers. A year ago, I read a rave review of some $1800 a pair PSB speakers then did a check at Madisound and found they spent under $100 for all the drivers, the tweeters were about $30.
Oh, I’m sure all were “modified” for the builder.
I don’t know of any modern speakers that can outperform my full range acoustat 2+2, ADS 1230 or my energy Veritas 2.8’.
I have some custom built speakers that are modern ( 5 years old?) with $500 RAAL tweeters, they’re still not as good as the ‘stats or the 2.8’s, so much for modern…