Ortofon Concorde Pro Twin Pack - 2 x DJ Cartridges each fitted with stylus 2 Pro Concorde turntable cartridges The Ortofon Pro Concorde is a general purpose turntable cartridge for scratch and back cueing, mounted with a spherical diamond It achieves an output of 5 0 mV Several Ortofon technologies make it possible to realize high sound quality and low record wear at the high tracking forces that are necessary in disco environments