Grado 78C 5.0 mV output Two Channel The Prestige Series of 78-RPM cartridges are designed for high output and excellent stability under even severe use. Each cartridge can be used for either archival or casual play without concern for undue wear on the record. All Grado 78 cartridges have a considerable reduction in tip mass resulting in extended frequency response while tracking forces can range from 2-5 grams. The experts acclaim these cartridges as virtually the finest 78-rpm cartridges in the world.