These IE's might not be cheap, but I will refer to Zreviews way of saying in his video (Link down below)
If you own the Legacy 5, then you already have a good idea of what I'm talking about, then what you do is add a crazy amount of soundstage and more sub-bass, then you're in a place where you know how much of a fan I am for the clairvoyance.
Link to video:
https://youtu.be/TLP7TAFj-nw