lol believe it or not i got laughed at pretty much by a friend of mine few years back when i was all green and i pronounced it as eebanes lol haha so yea i feel it's good to make threads like this to clarify and to avoid the embarrasment
Anyway, according to Wikipedia, it's pronounced as 'aɪbænɛz', so if I'm not wrong, it's supposed to sound like I as in I and you, Ban as in I ban you from entering, and Nez as in bird's nest but with a 'z'.