Okay, I have used all the cartridges that you mention above, on the Rega tonearms. The Dynavector and Audio Note(Goldring 1042) are high output MC, and easy to use in any phono section, and will work well in the arm. The Denon is slightly too stiff for the RB300, but will work pretty well. It can benefit from the increase of lateral mass that can be provided by my HiFi mod(Strange Tonearm Tweak). The Shelter will be the best, but also most expensive. It could also benefit by my HiFi mod, due to lower compliance. The Denon and Shelter are low output MC, and require a significant amount of gain in the phono section.
