SPU  GM Mk II

Technical data:

Output voltage at 1000 Hz, 5cm/sec.: 200 µV
Channel balance at 1 kHz: < 1 dB
Channel separation at 1 kHz: > 20 dB
Channel separation at 15 kHz: > 10 dB
Frequency range: 20-25.000 Hz
Frequency response: 20-20.000 Hz ± 3 dB
FIM distortion at recommended tracking force, DIN 45.542: < 1%
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
Equivalent stylus tip mass: 1,0 mg
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 Ohm
Recommended load impedance: > 10 Ohm
Cartridge body material: Grinded wood
Cartridge colour: Nickel/Black
Cartridge weight: 30 g