Specifications: Output voltage at 1000Hz, 5cm/sec. 450 μV Frequency range at -3dB 20 Hz - 50 kHz Frequency response 20 Hz - 20 kHz -3dB Tracking ability at 315 Hz at recommended tracking force 70 μm Compliance, dynamic lateral 12 µm/mN Stylus type Nude fine line, Al. cantilever Stylus tip radius r/R 8/40 Tracking force range 2.2-2.7 g (22-27 mN) Tracking force recommended 2.5 g (25 mN) Tracking angle 20° Internal impedance, DC resistance 5 Ohm Recommended load resistance 50-500 Ohm Cartridge weight 10.7 g Cartridge body material: Stainless steel / Aluminium - See more at: http://www.soundstagedirect.com/ortofon-mc-cadenza-mono-cartridge-audio-equipment.shtml#sthash.6BkbpDw2.dpuf