The SPU Classic GM MkII 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.
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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/- 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°
*) Typical value
Internal impedance, DC resistance – 2.5 ohm
Recommended load impedance > 10 ohm
Cartridge body material – Ground wood and resin composite
Coilwire material – High Purity Copper (OFC)
Cartridge colour – Shiny black
Cartridge weight – 32,5 g
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