Ortofon SPU Classic N

The SPU Classic N is a Moving Coil (MC) cartridge with an 18µm spherical stylus profile sold without an integrated headshell unit. Those with vintage SPU-type headshells can use the Classic N to recreate an authentic and functional SPU cartridge.

Listeners who wish to mount the SPU Classic on a traditional headshell may do so by using the SPU N adaptor.

NB: Vintage SPU-type headshells are no longer available.

Channel balance at 1 kHz 1 dB
Output voltage at 1 kHz, 5cm/sec 0.2 mV
Channel separation at 1 kHz 20 dB
Frequency response 20 Hz - 20 kHz 3 dB
Tracking ability at 315 Hz 60 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
Coil wire material High Purity Copper (OFC)
Cartridge colour Black matte
Cartridge weight 13 g