Ortofon SPU Royal GM MkII The SPU Royal GM and N models were released in 1998, together with the Jubilee cartridge to celebrate the Ortofon 80 year anniversary.  The SPU Royal GM MkII provides a playback experience that embodies the essence of analog, with generous refinements which bring the legendary SPU cartridges into the realm of unrivaled perfection.  The addition of Ortofon’s unique Replicant 100 stylus and reduced tip mass ensures open and detailed sound reproduction for a purely exquisite listening experience.  Electrum coils, consisting of a gold and silver alloy, provides uncolored and precise transmission of armature movements while the slightly modified damping system makes it possible to reduce VTF and achieves a higher level of linearity.  High purity 6-nines copper wiring ensures impeccable signal transmission and preservation of the finest of microdynamic detail.   We offer Special Repair Service for SPU Royal GM 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 >25 dB Channel separation at 15 kHz >20 dB Frequency range at - 3dB 20-60.000 Hz Frequency response 20-20.000 Hz + 1.5 / - 0 dB Tracking ability at 315Hz at recommended tracking force *) 70 µm Compliance, dynamic, lateral 8 µm/mN Stylus type Nude Ortofon Replicant 100 Stylus tip radius r/R 5/100 µm Tracking force range 2.5-3.5 g (25-35 mN) Tracking force, recommended 3.0 g (30 mN) Tracking angle 20° Internal impedance, DC resistance 6 Ohm Recommended load impedance >100 Ohm Cartridge body material Grinded wood Coilwire material Goldplated Silver Cartridge colour Shiny Black Cartridge weight 30 g