These products work with macOS 12 and macOS 13 and macOS14 (Sonoma):
Icarus2.5 or later, Icarus3
Electra3
Nemesis3
RayBlaster3
Warlock
Saurus4
Gladiator4
UltraSpace
Akustix
These products are discontinued on the Mac and not compatible. Sadly it is not possible to port them with reasonable effort:
FilterBank
BiFilter
Warmverb Multi-FX