Oof, I was looking at the 3 for an upgrade. I plan on buying the ZMF Auteur too so I guess it'd be an overlap. I'd rather have a dynamic planar than chilled out, so I guess I should be looking at the X. Lots of people have different opinions on the X compared to the 2C. I've heard they're darker & not as dark. I've heard they slam harder & don't have as much slam. I'll just have to listen myself at some point.