Rarely seen for sale Ortofon SPU Royal A serial number #R3184 low output moving coil phonograph cartridge. A legendary design which truly needs no introduction. This SPU A phono cartridge has zero hours of use and has never been played since being professionally rebuilt and tested by Ortofon Denmark in November 2019. All factory paperwork and documentation is included with limited manufacturers warranty. Contact me directly with any further questions. Christopher 219.933.8115 [email protected]
The Ortofon SPU Royal A provides a playback experience that embodies the essence of analog, with generous musical refinements and a rich, weighty tonal attribute 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.
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 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° *) Typical value
Internal impedance, DC resistance - 7 ohm
Recommended load impedance > 100 ohm
Cartridge body material - Ground wood and resin composite
Coilwire material - Electrum/Gold plated silver
Cartridge color - Shiny black
Cartridge weight - 30 g