I haven't heard the se530s, but I can testament that the JH16s have both plenty of deep bass and sparkling treble. Just heard the ES5 and it only made me want the JH16 more.
Thanks for the suggestions. I'll have to wait till my JH 16's arrive before making any decisions. Though I think I'll just stick to using them unamped for now and add the amp when I have the money.
mrspeakers: since you've owned the se530's, how do you think they compare to the JH 16 pros unamped? The main flaw with the shures in my opinion are the rolled off highs. Also the sub-bass sound like it's rolled off to me as well below ~50Hz. I've tried EQing the 530s, but still can't get the treble and deep bass I was looking for. Hopefully the JH 16's meet my expectations and more.