Ortofon SPU Mono GM MkII

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Ortofon SPU Mono GM MkII

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Ortofon SPU Mono GM MkII for playback of early mono records

 

The SPU Mono GM MkII is a high output Moving Coil cartridge a 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 remarkable level of sonic accuracy, and its high output negates the need for a moving coil transformer.

 

We offer Special Repair Service for SPU Mono GM MkII»

 

Technical data  
Output voltage at 1000 Hz, 5cm/sec. 3 mV
Frequency range at – 3dB 20-20.000 Hz
Frequency response 20-15.000 Hz + 2 / – 1 dB
Tracking ability at 315Hz at recommended tracking force *) > 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 3.5 g (35 mN)
Tracking angle 20°
Internal impedance, DC resistance 100 Ohm
Recommended load impedance 47 kOhm
Cartridge body material Grinded wood
Coilwire material High Purity Copper (OFC)
Cartridge colour Black
Cartridge weight 30.5 g
 *) Typical value