I agree with the other posters that "new" technology does not necessarily mean better. I don't know of anything about the Cadenza Black's design/technology that makes it any "newer" than the Dynavector. If you liked the Cadenza Black more, it could be for a variety of reasons -- personal taste, system matching/synergy, better alignment (could happen just by chance), the Dynavector having become "tired" and worn, etc. So many factors come into play that it is hard to offer anything more than a suggestion on what to try (if you have a dealer that lets you try cartridges) or to gamble on if you cannot do an in-home trial. Just one factor alone -- how a cartridge works with a particular phonostage -- is such a big deal that it becomes almost meaningless to speculate on a winner.
But, if you happen to like the Ortofon house sound, then of course the A90 should be a contender. There still is the possibility that the A90 will not suit your needs.
As a very rough guide into what to consider, if you are looking for a more incisive sound (faster sounding transients and more "jump"), then, the Titan is a contender, as would be the Van Den Hull Colibre, or the Decca London and even the Transfiguration Orpheus L. I haven't heard the A90, but a friend has its close cousin the Per Winfield. The PW is a very good sounding cartridge. Again, as a rough generalization, you probably would not be looking at a Koetsu (unless it is something like the Onyx Platinum), or an Allaerte.
