Dertonarm is absolutely correct on this one. BTW I have yet to see a MM that actually loads correctly at 47K. Most are more like half that and I have seen Grados that are closer to 10K.
Cartridge Loading
I just purchased a Benz Ace with .8mv output. The requirements are loading of > 200 ohms. I do not want to spend time trying to determine if 400 ohms sound better than 600 ohms If anyone has experience with the Benz and could give me a resistance that will work well I would appreciate it. Thanks Geroge