Ortofon MC 20 MKII

I was just given an unused Ortofon MC 20 MKII. Does anyone have experience with this cartridge? How does it compare to a Grado Reference Sonata 1? Will a Grado PH-1 phono preamp have enough gain to really check it out or will I need a transformer?
I have no experience with the Grado Reference Sonata 1 and Grado PH-1 phono preamp, so I have no comment. But, in my humble opinion, the Ortofon MC 20mk2 is only an average cartridge in sound, nothing to wave about. My aluminium body Denon 103R simply blows it out of the water.
56dB is not enough.