Well. After four days with the Audeze LCD XCs and my HD800s, I have reached a point where there is no serious chance that I will reach for the LCD XCs over the HD800s.
Based on that, I called Audeze and the retailer and asked if I could please return these since I won't be using them. They allowed me to do so with a 15% restocking fee ($300). Ouch, but let that be a lesson to me to be less impulsive when buying something. Overall, though, I'll pay the $300 and give them back because there's no point in keeping something you'll never use.
P.S. I explained to the Aude'ze person that Sennheiser (or their authorized retailers) have a 30 day money back guaranty but she said Audeze doesn't do that. I guess I can't fault her for that since it's sort of a penalty to deter people from ordering stuff they might not want to keep. But I do think it's another example of Sennheiser's superiority.
Edited by ag8908 - 2/17/14 at 11:01am