Pros: Intimacy, Impact, Imaging
Cons: Need to be committed to dialing in the fit
The JH13 is not just the best IEM around, it's one of the best headphones around--period. The impact, detail, speed, agility, and body of these phones are simply amazing. The full-sized can I find myself comparing them to is my O2 mk1. That's about the highest praise I can offer a headphone. Jerry Harvey does not screw around. The only cons are that it may take a couple of refits to get them dialed in (but this is worth it) and I sometime wish they had just a touch (and I mean a tiny bit) more bass. But even that criticism seems to be waning as I get more accustomed to the sound signature. (And I am consciously not ascribing this change in opinion to some ridiculous notion of "burn-in.")
And while some may find these very expensive, you get what you pay for. Great sound; great customer service. Well done JHA.