Ortofon SPU Classic N

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 the 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.

Specifications

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 *) - 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°
*) Typical value