I have the Grado Reference high output MM cartridge (4.5 mV) which I am using with my VPI Hw-19 MK4 and Rega RB-900 tonearm, and I am extremely pleased with it. You can sometimes get this cartridge used, with "low mileage", here on A-gon for around $650 -- at this price, it is not only an excellent performer, but an outstanding value. If you want prefer to buy a new cartridge, the Grado Sonata is also an excellent MM cartridge.
