06-07-09: Djn04Although the four cartridges appear physically identical, they 2M system is really two separate cartridge bodies and four stylus assemblies. The Red and Blue cartridge bodies are identical. The Bronze and Black cartridge bodies are also identical--to each other, but not to the Red/Blue bodies. The Bronze/Black bodies are built with better materials and closer tolerances (and slightly different design IIRC) to take full advantage of the higher-res--but slightly different compliance--Bronze and Black styllii.
One thought I had was to replace the stylus on the 2m red. I read somewhere that all 2m have the same body. Is that true? If so could I put a 2m black stylus into my 2m red body?
You *may* be able to slide a Black stylus onto your "Red" cartridge body, but it won't make it a real 2M Black. However, if you replace your Red stylus with a Blue one, it will be identical with the factory 2M Blue.