The Semkarch graph sure looks interesting. I'm still looking for a good DD IEM. How's the clarity and details for this IEM?
Not a single dd but dual dd aligned in tandem, try Zero Audio Duoza. It's the most balanced sounding dd iem I've heard under $100. Splurge a little more then try the Sony mdr-7550 (aka ex800st) which can be transformed to a bass head iem via a simple tape mod.