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.

The SPU Mono CG 25 DI MKII cartridge features a 1.5mV output, which makes it suitable for use with a variety of medium-gain moving coil transformers.

Important Usage Note: This cartridge is designed exclusively for mono records. It is imperative to note that using it for stereo records can lead to irreversible damage. 



  • Output voltage at 1 kHz, 5cm/sec
    1.5 mV
  • Frequency response 20 Hz - 20 kHz
    3/- 1 dB
  • Tracking ability at 315Hz at recommended tracking force
    60 µm
  • Compliance, dynamic, lateral
    7 µm/mN
  • Stylus type
  • Stylus tip radius
    R 25 µm
  • Tracking force range
    3.0-4.0 g (30-40 mN)
  • Tracking force, recommended
    3.5 g (35 mN)
  • Tracking angle
  • Internal impedance, DC resistance
    6 ohm
  • Recommended load impedance
    100 ohm
  • Coil wire material
    High Purity Copper (OFC)
  • Cartridge body material
    Ground wood and resin composite
  • Cartridge colour
    Black matte
  • Cartridge weight
    35 g

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