I had the SE530 for 2 years and recently lost them on the plane. I'm a classical music, female vocal lover too and SE530 did disappointingly in these areas. While I have no complains for bass and mids, the highs are "hidden". To me, they were unlikeable without an amp to boost the treble a bit.
When I lost the SE530, I grieved a little, mostly on the money I spent rather than missing the earphones. I don't think I'm going back to them this time. There are now many other options out there since I purchased them. I was looking at the Sleek custom (I believe the SA6 has the same sound sig), which according to reviewers, have a more balanced spectrum. But since Westone 3 just announced a release date, it might be worth waiting to see how others like it.
In short, if you are a classical music guy, I'd look elsewhere, SE530 whilst not bad, I don't think it gives a good representation of the orchestral sound or treble vocals.