Not sure if this was discussed somewhere in this thread (too lazy to read it all) but how does the bass of these compare to that of the ATH-M50? I bought some of those on XMas expecting a bass-heavy headphone that would punch with the kind of music that I listen to but was very disappointed when I heard them, I have tried equalizing and have already burned them in for over 50 hours so I don't think they will improve over time. I'm now looking into buying these if I can successfully return my M50s on ebay.
On the 1.5 setting the bass quantity is pretty much equal with the M50 but the COP still have more bass impact. Go up on the 3 setting and the bass impact destroys the M50, and it's still sound good for normal listening. The 4th setting is if you are a basshead.
I think you will be more happy with the COP for sure.