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Type: MONO CG 25 DI MKII

  • Ortofon cartridge

The SPU Mono CG 25 Di MkII is for the playback of early 25 µm mono recordings.

The Mono CG 25 Di MkII is an SPU-style Moving Coil cartridge with a spherical stylus profile, for the playback of early 25 µm mono recordings. The CG 25 Di MkII provides an authentic method of playing back these early vinyl recordings with a remarkable level of sonic accuracy.
This cartridge features a 1.5mV output, which makes it suitable for use with a variety of medium-gain moving coil transformers.


  • Output voltage at 1000 Hz, 5cm/sec.: 1,5 mV

  • Frequency range at - 3dB: 20-18.000 Hz

  • Frequency response FIM distortion at recommended: 20-15.000 Hz + 3 / - 1 dB

  • Tracking ability at 315Hz at recommended tracking force (typical value): > 60 microm.

  • Stylus type: Spherical

  • Stylus tip radius: R 25 microm.

  • Tracking force range: 3,0-4,0 g (30-40 mN)

  • Tracking force, recommended: 3,5 g (35 mN)

  • Tracking angle: 20 degrees

  • Internal impedance, DC resistance: 6 Ohm

  • Recommended load impedance: > 100 Ohm

  • Cartridge body material: Grinded wood

  • Coilwire material: High Purity Copper (OFC)

  • Cartridge colour: Black

  • Cartridge weight: 33 g