Want to upgrade my cartridge from 2m blue to black

The Black stylus can be swapped into any of the 2M bodies the difference is that the "better" ones gets selected for the Bronze and Black - the runts for the Red and Blue.  The electrical specs are listed as 1.2kOhm for the Bronze and Black - 1.3kOhms for the Red and Blue.

Be careful pulling the the wire leads of the 2M series the cartridge pins can pull out if the clips are too tight.  

Good Listening

Peter

bsmg

As I describe above, any of the 2M styli is mountable on the two "different" body types - which physically are the same.  The "differences" are electrical, the "better" ones go to the Bronze/Black series the "lesser" ones to the Red/Blue

Take a look

https://systems.audiogon.com/systems/4923#&gid=1&pid=16

https://systems.audiogon.com/systems/4923#&gid=1&pid=17

The "Difference" between the Red/Blue - Bronze/Black is the 2M logo red vs Gold SilkScreen, and it sounds fantastic :-)

One Caveat when working on the 2M series, be very careful pulling the leads of the pins, a slight design flaw with them is that they are smooth so if the clips are too tight - the pins can pull out of the body destroying the cartridge.

Good Listening

Peter

The 2M black body is made of a different material to that of the blue, there are also component differences inside. Silver wire for example.

Where the heck did you get this info ?

Have both cartridges and many more - they are identical

Good Listening

Peter

Chakster - I'm going to try that Astatic MF100 on your recommendation - I do most of my listening with top flight MC - have curtly installed A90/Lyra Olympos/ Lyra Atlas/ Ortofon Cadenza Black/ and the 2M Black on a "red" body :-) - you know the thing that can't be done

Good Listening

Peter