I have never herd the ZXE600 series, but I agree that it looks good. I like the look of the AXE600NE better than that of the AXE600BE, from the pictures on the Cresyn website anyway. I also like the look of the bag that comes with them for carying them around in.
The look of the AXE600 series is a little more tame than I am used to with Cresyn's earbuds. It still has an excutive look to it, which I think their other earbuds exibit as well. But the AXE600 series is a little bit more available, not so out their as some of their other earbud looks. Looks a little like the Sony MDR-E888LP, but with more metal and less plastic.
I don't like how the "counter weight" of the dumbell look of the bud is so small. That is that the bud with the speaker is large and the other side of the semi-dumbell shaped houseing is small. I think it was larger and more pronounced in some of their other earbud lines.
It has a 15mm driver, which I honestly don't know the importance of. That is that I don't know if 15 mm is large or small in earbuds. It has a high sensitivity of 106 dB/mW. Which should make it loud enough for those with powerless flash DAPs. With a max input of 40 mW it should be able to keep a very loud program level going as well.
I would love to think something about the quoted 12 Hz low end frequency response, but the parramaters of the measuremtn are not given so the information is next to useless.
Those are my thoughts on it just from reading the Cresyn webpage for the product.