Presets are “in the ears of the beholders”, so it depends on the genres you play and the sound that you are looking for.
I can comment on using turntables, because the worst way that you can use them is on a traditional desk or table top, simply because the very sensitive stylus can easily pick up any vibrations and therefore create a feedback loop. My radio station has the turntables hinged to a solid brick wall and suspended by chains, and this dramatically reduces resonance and feedback. I have seen other stations with a layer of thick felt, then a solid concrete block (like a paver), and then the turntable on spring legs.
Obviously, if the studio monitors are cranked too high, this will exacerbate the situation.