Dear Alun: I don't know nothing about your phonopreamp, so I can't tell you if it is true that the MM stage is better than the MC stage on it, other than if the MC stage use internal step up transformers then it is better if you go for the blackbird.
The Celebration is a better quality sound performer with the right gain ( with out external/internal SUT ) phonopreamp and I never had any tracking problem with it in any record.
Now, in my opinion, the phonopreamp is the most important link on an analog rig, if you want to take out the best of your analog rig you have to put your money in the best phonopreamp that you can buy on your budget. You will be rewarded if you do so.
Regards and enjoy the music.
Raul.
The Celebration is a better quality sound performer with the right gain ( with out external/internal SUT ) phonopreamp and I never had any tracking problem with it in any record.
Now, in my opinion, the phonopreamp is the most important link on an analog rig, if you want to take out the best of your analog rig you have to put your money in the best phonopreamp that you can buy on your budget. You will be rewarded if you do so.
Regards and enjoy the music.
Raul.