丹麥 ortofon SPU Classic Gm MKII 唱頭

描述

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 / – 3 dB
Tracking ability at 315Hz at recommended tracking force *) > 65 µm
Compliance, dynamic, lateral – 8 µm/mN
Stylus type – Nude Spherical
*) Typical value

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 – Wooden Powder
Coilwire material – High Purity Copper (OFC)
Cartridge colour – Black
Cartridge weight – 31.5 g