Ortofon SPU Classic N Moving Coil Cartridge

The SPU Classic N provides the same sound reproduction properties as the SPU Classic GM series
The SPU Classic N is sold without the integrated headshell unit.
The SPU Classic N is a Moving Coil (MC) cartridge with an 18µm spherical stylus profile.
Listeners who wish to mount the SPU Classic on a traditional headshell may do so by using SPU N adaptor. Those with vintage SPU-type headshells can use the Classic N to recreate an authentic and functional SPU cartridge. NB: Vintage SPU-type headshells are no longer available.

The ST-7 transformer is a perfect match for the SPU Classic N cartridge.

SPU Classic N 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 response – 20-20.000 Hz ± 3 dB
• Tracking ability at 315Hz at recommended tracking force *) – 65 µm
• Compliance, dynamic, lateral – 8 µm/mN
• Stylus type – Nude spherical
• Stylus tip radius – R 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 – 2.0 ohm
• Recommended load impedance  > 10 ohm
• Coilwire material – High Purity Copper (OFC)
• Cartridge colour – Black
• Cartridge weight – 13 g