Ortofon SPU Classic GM MkII
The SPU Classic GM MkII, known for its dynamic and powerful sound reproduction, is a Moving Coil cartridge with an 18 µm spherical stylus profile.
The SPU Classic series embodies the essence of the original Moving Coils and are a perfect solution for the playback of both early and modern and contemporary stereo recordings.
Techical 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 range at – 3dB
20-25.000 Hz
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
6 Ohm
Recommended load impedance
>10 Ohm
Cartridge body material
Grinded wood
Coilwire material
High Purity Copper (OFC)
Cartridge colour
Nickel/Black
Cartridge weight
32 g