ORTOFON SPU CLASSIC N
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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.
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
Internal impedance, DC resistance - 2.0 ohm
Recommended load impedance > 10 ohm
Coilwire material - High Purity Copper (OFC)
Cartridge colour - Black matte
Cartridge weight - 13 g