Any change to the cartridge/phono stage (I don't need an SUT) or arm will change the sound. If the turntable is well isolated and is of high quality, it shouldn't change the sound. The turntable should not "sound" like anything.
The most important part of any system is the source - the sound cannot improve from whatever comes out of it. That doesn't mean other things aren't important too.
As always, the limiting factor (aside from the source) of overall SQ is your room. For a small room, speaker selection is limited.