My V6-Stage universals are the only 1964 EARS I've ever heard, but if you add excellent bass extension and detail to your wish list they should be an very good match for you.
The mids are right there (no V signature here) and the piano sounds so realistic. Along with the mids is an equal amount of very detailed bass and very detailed highs. Then add in a wide soundstage, precise placement (performers must love this), and a very nice sense of air/openness/realism. I think you would like them!
How are you liking your universals? What tips are you using? The ones that came with my V8's didn't fit so well. I have been rolling with some Comply and some UE silicone with a wide bore.