Comment by toomanybeersies

People's taste has changed though. Your speakers from the 80's generally can't be driven as loud with current music, as modern music tends to be a lot more bass heavy (obviously a lot more pronounced with techno and other electronic music, but also with pop music).

The response curve from speakers has also reflected that, a lot of them are bass boosted in the amplifier or are designed with a bass boost in them.

I have some fairly nice speakers from the 70's (a couple of different sets, one homebuilt), and Pink Floyd and Jefferson Airplane sound a lot better from them than Katy Perry or Tiesto.