Haven't listened to Westone 3 yet, but I find that UE Triple Fi to be clearer and fuller than Shure SE530.

Without amp, I think A700 is your best bet.

I found PRO700 to be a little bit hard in the mid range, while M50 is more balanced all around.

From all IEMs that I listened to, I found that most of them can't compare to the level of fullness and depth that full size cans can provide.

Bought RE0 last month and have been enjoying it since. Certainly was a nice upgrade to my CX300. SQ is great, articulate and clear, high is crisp enough but not too aggressive, mid is smooth. I still find the bass a little bit lacking and the soundstage is not enough. RE0 is kinda hard to...