guicnovaes
100+ Head-Fier
The green knowles dampers seems to be the same as the Ety ones. Probably knowles makes them for Etymotic:i started to lose treble energy yesterday from the right side with the ER4S so i changed the dampers (3 years without change), what a difference, they are fully refreshed and the sound is much cleaner and more "analytical", those were my last original Ety dampers (the plastic ones), i have a small bag with brown, green and white Knowles dampers (metal pipe ones), i hope that when i have to change them the next time the nozzle will stay intact (not cracked) that is my main concern with the dampers that i have in hand now
or i can just purchase original dampers, will see
https://clarityfidelity.blogspot.com/2016/09/etymotic-research-er4sr-iem.html?m=1
I always clean inside the eartips hole, exactly to preserve the dampers.