Dear Dan: Well there is other confuse information: I know that the Platinum series has 0.2mv but now on the Koetsu official site you and I can read: 0.3mv ?????, there is no echnical reference about.
Now, for what you posted on your tonearm and phono stage IMHO I don't think that those audio items can do real " justice " to either of those MC cartridges: IMHO you don't have the right analog rig ( those both items ) to match those cartridges but you can buy either of those MC cartridges if you think to up-grade/change your today tonearm and phono stage.
Now, the good news are that there are other very good options that can/could even your Koetsu/Dyna alternatives using your today tonearm/phono stage.
Options: Nagaoka MP-50, Grado Amber The Tribute, Reson Reca, Clearaudio Maestro/virtuoso, the new MM Ortofon line, B&O MMC 1 or 2, Soundsmith The Voice, etc, etc.
You can achieve your targets with these cartridges and with one additional advantage: low price against those MC cartridges that you are looking for.
Regards and enjoy the music.
Raul.
Now, for what you posted on your tonearm and phono stage IMHO I don't think that those audio items can do real " justice " to either of those MC cartridges: IMHO you don't have the right analog rig ( those both items ) to match those cartridges but you can buy either of those MC cartridges if you think to up-grade/change your today tonearm and phono stage.
Now, the good news are that there are other very good options that can/could even your Koetsu/Dyna alternatives using your today tonearm/phono stage.
Options: Nagaoka MP-50, Grado Amber The Tribute, Reson Reca, Clearaudio Maestro/virtuoso, the new MM Ortofon line, B&O MMC 1 or 2, Soundsmith The Voice, etc, etc.
You can achieve your targets with these cartridges and with one additional advantage: low price against those MC cartridges that you are looking for.
Regards and enjoy the music.
Raul.