I dont know exactly what category the IE2's and the Philips models I listed fall into, but whatever they are I'd like something similar.   I realized today that the tips of the Philips do actually insert fairly far, so I think it may be more about the vent than the fit/isolation.

Hey all, new here looking for some advice from the experts. I've owned a bunch of IEM's over the years but the two that are my favorite are the Bose IE2 & the Philips SHE6000/28, which I've owned several of, as well as its predecessor the Philips SHE5920. My Bose's have decided to start cracking...