Ortofon SPU Mono G MKII

The SPU Mono GM MkII is a high output Moving Coil cartridge with a spherical stylus profile for the playback of early 25µm mono recordings.

The SPU Mono GM MkII provides an authentic method of playing back these early vinyl recordings with a remarkable level of sonic accuracy, and its high output negates the need for a moving coil transformer.

Output voltage at 1 kHz, 5cm/sec 3 mV
Frequency response 20 Hz - 20 kHz 2/- 1 dB
Tracking ability at 315 Hz 70 µm
Compliance, dynamic, lateral 12 µm/mN
Stylus type Spherical
Stylus tip radius R 25 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 100 ohm
Recommended load impedance 47 kohm
Coil wire material High Purity Copper (OFC)
Cartridge body material Ground wood and resin composite
Cartridge colour Black matte
Cartridge weight 28 g