My progression: AT OC9MLII > AT ART 9 > Soundsmith MIMC Star. Here is what I wrote comparing the ART 9 and MIMC Star (and also Quintet Black) in my VPI: https://forum.audiogon.com/discussions/3-cartridges-reviewed?highlight=3%2Bcartridges
I haven't heard the new OC9 series carts in my own system. I did hear the new OC9MXL at the VPI house in an unfamiliar system so won't comment other than to say that Harry is a big fan of the new lineup. I was a big fan of my OC9MLII (and so is Keith Herron FWIW). Great cartridge for the money and probably all that anyone really needs. The ART 9 was better--cleaner, more refined, more detailed but mostly just lower distortion and an overall clearer presentation. The MIMC Star and the ART 9 are equally great just in different ways--you can follow the link for more comments on these two.
I haven't heard the new OC9 series carts in my own system. I did hear the new OC9MXL at the VPI house in an unfamiliar system so won't comment other than to say that Harry is a big fan of the new lineup. I was a big fan of my OC9MLII (and so is Keith Herron FWIW). Great cartridge for the money and probably all that anyone really needs. The ART 9 was better--cleaner, more refined, more detailed but mostly just lower distortion and an overall clearer presentation. The MIMC Star and the ART 9 are equally great just in different ways--you can follow the link for more comments on these two.