Think it depends on your definition of “hi res”? A good system w/ solid state electronics can sound quite different to one of similar caliber but tube based. I’ve a few examples of each that to me sounded great & some that didn’t. It’s similar to a good turntable/ arm / cartridge set up vs good digital ( streaming or disc or whatever). Both can be considered “ hi res” but sound sound differently although in my system, they’re getting pretty close.
I personally like good , highly efficient horn loaded speakers powered by good tubes & their unmatched dynamics & live sound which for myself, is a must to be considered hi res. For others, that’s not important & really extended frequency extremes & detailed imaging & depth is a must. This variety is one of the things that makes this music enjoyment hobby fun!