ScottPilgrim
100+ Head-Fier
*ALMOST* covering it but I cut a little bit off so that the spacer doesn't cover the vent. No driver flex and no air-pressure buildup either.Are you sure you are not blocking the front vent? It looks like the stem is covering it, which would increase bass response, possibly create pressure during fitting and create driver flex. Just to make sure....
As for how it changes the sound ... I think the IEMs gained a better sense of directional cues in imaging, or as such I hear. Either way the fit is much better now IMO.
I tried this spacer mod in my KZ AS10 and NOPE'd all the way, no vents on the front to alleviate air pressure.