There are a lot of older speakers that can compete with many new speakers today.
Within their obvious limits, a pair of Quad 57s can run with many of the best (I use original Martin Logan CLS and they are fantastic for non bass heavy material).
I also have some Vandersteen 4A that were at the time his top speakers, made in quite small numbers - all the money went into the drivers rather than 'wasting' it on fine veneers - he just 'put a sock on it' for looks (Anyone looking at these be sure to buy 4A, not 4).
And the speakers I use in my main system (Wilson Maxx2) still handily compete with many today - and they don't give small children nightmares like the stupendously priced current top of the line Wilsons.