What’s more economically important, the razor, or the blades? I have two sets of what the kids call IEMs, but what we used to call “earphones”, from the nice people at Noble Audio: the Noble x Massdrop and the Noble Luxe. The former is stellar, the latter ain’t bad. I’ve discussed in the past how Noble carefully notes the source of every component in their IEMs, which is nice. So far my experience has been very good and I’m expecting long service out of both sets. The problem, however, is simple: earplugs, unlike diamonds, are not forever.