Thanks KG Jag for the suggestions. I knew it was a long shot but I was hoping the Westone 4 was a popular enough IEM that someone may have been familiar with it.
Thanks for the reply TwinQY. The vagueness of my question is actually quite intentional. Yet I do see your point in the need to provide a better description of what I am looking for. So I will give it a shot.
Budget: Less than $450 USD
Current Equipment: Macbook Pro, iPhone 4s and fiio E6. Though I will probably look to upgrade my amp in the coming months something $150USD or below probably. (Open to suggestions)
Open/Closed: Probably Open as I will be using them mostly at home but if there is a closed headphone that sounds great (and not too small of a soundstage) then I am open to that as well.
Preferences: I'm really looking for a good all-rounder I think. I like clarity but not if it will completely sacrifice in the bass department and vice versa. I would like something that can handle pretty well any genre I throw at it as I listen to a great variety of genres depending on my mood. Warm or Bright does not matter.
Music: Varies but mostly Rock, Alternative, & EDM
Various: Comfort is always a plus but not at the sacrifice of sound quality. I have a small to average sized head if that makes a difference.
Size: Looking for Full-sized over the ear headphones
I've been looking at Senn HD 600, Mad Dogs, and hifiman he-400 but if there are other's out there that will do the job better I would love to find out. Thanks again.
Spend $350 and pick up the K702 65th Anniversary Edition. This is, in my opinion, the best all-arounder you can pick up within your budget and it's going to be right in line with your preferences. The E6 will be barely enough to power them on portable devices, but the K702 is not really portable. Take the additional $100 and spend it on a Schiit Mangi or FiiO E09K on your desktop system.