I have not heard the CineMag, but own the EAR. If you did not follow this thread, check it out:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1278350882&&&/SUT-shootout
Personally, I would be careful about inserting another set of interconnects/jacks/wire/solder between your cartridge and preamp, with the hope of improving on what are already good SUT's in the EAR. I can tell you that a surefire upgrade would be to have the EAR upgraded with better caps/resistors by someone like Mitch Singerman. I had the mods done a few months ago, and I am extremely impressed with the results. I would bet that this would be a much more significant upgrade than using different external SUT's.
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1278350882&&&/SUT-shootout
Personally, I would be careful about inserting another set of interconnects/jacks/wire/solder between your cartridge and preamp, with the hope of improving on what are already good SUT's in the EAR. I can tell you that a surefire upgrade would be to have the EAR upgraded with better caps/resistors by someone like Mitch Singerman. I had the mods done a few months ago, and I am extremely impressed with the results. I would bet that this would be a much more significant upgrade than using different external SUT's.