The better question is, do you? I haven't heard of the DBIs, but between the AKGs and the Superluxes, the AKGs are closed, more portable, and bassy, while the Superluxes are more precise, less bassy, and semi-open. It all comes down to personal preference and usage scenarios.
I don't have an opinion, unfortunately. I've never owned anything that wasn't in ear haha. Well I guess I do have an opinion, the AKGs look better..but the DBI's are some sort of commercial grade headphones that come up for sale sometime that are supposed to be pretty decent, and they are super tough which is nice for me, as a college student. I will be using these headphones for studying purpose so isolation is nice but 100% is not needed. My expectations are low, which is why I'm not spending all that much right now. Was hoping someone owned the DBI in addition to either the Superlux or AKG :)
PS Thanks for the reply!
PSS..I was also looking at a set of CAL!s
Edited by HeadBeats - 1/31/12 at 6:45pm