Hey, I'm in the market for a sub-$200 headphone, I dont care for isolation/portability, it's for general usage (mainly listen to electro like kavinsky, daft punk, justice, not bass heavy bassnector or skrillex, but i listen to indie, metal, etc too).
Kavinsky odd look
http://www.youtube.com/watch?v=qT0iQRjHbW4
I'm torn between the 558s and DT990s right now, leaning towards 558s for being ~$20 cheaper and more people saying it's more comfortable than the DT990.
I haven't really considered the 880 due to being only semi-open and more expensive. My only experience is having the 681 evos for the last week (gift to GF), they get a bit sore after 4+ hours due to my ear touching the driver pad (i think that's the reason).
I'll be using them solely off my Z87X-UD3H ALC898 with integrated 600 ohm headphone amp (TI DRV632). If the headphones need an amp, I'd be okay with that, I can buy one in the future if it's necessary.