I have tried Pyro 2003 as an replacement for Siren, but it didn't match Siren in any way.

Instead try to find Siren, it is a much better product, and with Sony's acquisition one can hope they will consider to make a pro version of Siren, which should not be made to compete with all the player. I could list several features I would like to see in a professional player with a realtime control center.

This software would replace Siren and CDA on my computer