Ortofon SPU Classic GM E MkII The SPU Classic GM E MkII, known for its dynamic and powerful sound reproduction, is a Moving Coil cartridge with an elliptical stylus profile.  The SPU Classic series embodies the essence of the original Moving Coils and are a perfect solution for the playback of both early and modern and contemporary stereo recordings.  The SPU Classic GM E MkII’s elliptical stylus profile provides more detailed sound reproduction and expansive imaging.  We offer Special Repair Service for SPU Classic GM E MkII »   Technical data   Output voltage at 1000 Hz, 5cm/sec. 0.2 mV Channel balance at 1 kHz < 1 dB Channel separation at 1 kHz >20 dB Channel separation at 15 kHz >10 dB Frequency range at - 3dB 20-25.000 Hz Frequency response 20-20.000 Hz + 3 / - 2 dB Tracking ability at 315Hz at recommended tracking force *) 65 µm Compliance, dynamic, lateral 8 µm/mN Stylus type Nude elliptical Stylus tip radius r/R 8/18 µm Tracking force range 3.0-5.0 g (30-50 mN) Tracking force, recommended 4.0 g (40 mN) Tracking angle 20° Internal impedance, DC resistance 6 Ohm Recommended load impedance >10 Ohm Cartridge body material Grinded wood Coilwire material High Purity Copper (OFC) Cartridge colour Black Cartridge weight 30 g