what I've noticed is that the Triple.Fi had slightly more emphasized mids and highs than the SE530, and the lows of the Triple.Fi are a little more controlled than the SE530. It's also a lot more fatuiging to listen to than the SE530. The SE530 is just so, so smooth, you can listen to it for hours and hours and hours and you'll feel right at home. The SE530 is also much, much more comfortable than the Triple.Fi, the isolation is better, and it has a very low profile so you can sleep with it in without problems.
If you want an IEM that sounds amazing, for short amounts of time (<1.5 hours), and don't sleep with earphones, get the Triple.Fi.
If you want a very comfortable IEM that sounds great and facilitates extended listening, the SE530 is what you want.