Carpet
Headphoneus Supremus
definitely, i tried it with es9038q2m. so it's a warm source, i have treble sensitivity. It's really hard for me, I'm looking for a solution. I don't have much desire to listen, what source do you have? It's one of the best soundstages I've ever heard, so I don't want to take it out of my collection.
Foam eartips will give a big cut to treble and give better isolation. Also an option for anything prone to bad driver flex. The TENNMAK ones are good and last longer than most.