I have a $30 balanced cable I bought off of Amazon and that $60 one. Both are excellent but the $60 one I posted on that link is a higher end cable for certain. has better resolution and slight airier sound. Has much more silver content to the coating as there seems to be more and thicker cores to the cable. I don't have that cheaper $15 one to compare it to but I would imagine it does the job. Might have to try out that $15 cable. Can't have enough balanced cables.
Btw.....are you hearing a significant difference in SQ on the X5iii in balanced vs. SE? Maybe I need to play with different cables.