Pros: soundstage, detail, bass, smoothness, comfort, durability, cord length, user-replacable cord and eartips, unobtrusive, just the right isolation
Cons: price, but not so much because i got them on UK Ebay for $250 shipped =D shop around, they're worth it, and you can find bargains
Okay, I have to leave for school in 5 minutes, so this is gonna have to be quick.
Basically, I totally love these. With my Cowon S9, everything from Armin Van Buuren to ES Posthumous sounds ridiculously amazing. The soundstage, smooth sound, and easy listenability at low volumes are the coolest parts for me.
Okay, I'm not going to write a real review. I just want to say I've been looking for a full-size headphone with the same strengths that can be used unamped and there isn't one. I was thinking DT990 32 ohm, but apparently even that needs an amp. The soundstage, comfort, durability (i've really tested this part, I'm an energetic ADD high school student lol) are unbeatable for this drivability. Like yeah, I could get the AD700s for the soundstage, but these have so much more going for them. I really can't describe it, but there's a sort of emotional connection I have when I listen to music with these earphones. I actually posted a thread about this and my Cowon S9, titled something like "Cowon S9 + Senn IE8 = Bliss" a couple months back because I loved this combination so much. Anyways, get this, you won't regret it.