Ortofon SPU Royal N  The SPU Royal N provides the same sound reproduction properties as the SPU Royal GM series, but is sold without the integrated headshell unit.  The SPU Royal N 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.  Listeners who wish to mount the SPU Royal N on a traditional headshell may do so by using Those with vintage SPU-type headshells* can use the Royal N to recreate an authentic and functional SPU cartridge. *Vintage SPU-type headshells are no longer available. 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 Coilwire material Goldplated Silver Cartridge colour Blue/Gold Cartridge weight 13 g