Ortofon Concorde Gold Twin Pack - 2 x DJ Cartridges each fitted with stylus The Concorde Gold Twin includes two cartridges with attached styli as well as a locking-clasp flight case. Output voltage at 1000Hz, 5cm/sec. 6 mV Channel balance at 1kHz 1.5 dB Channel separation at 1kHz 23 dB Tracking ability at 315 Hz at recommended tracking force 80 m