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. Ortofon ST-M25 moving coil transformer is designed exclusively for the SPU Mono CG 25 Di MkII.
Output voltage at 1000 Hz, 5cm/sec. | 1.5 mV |
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Frequency response | 20-15.000 Hz + 3/- 1 dB |
Tracking ability at 315Hz at recommended tracking force | > 60 µm |
Compliance, dynamic, lateral | 7 µm/mN |
Stylus type | Spherical |
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 | 20° |
Internal impedance, DC resistance | 6 ohm |
Recommended load impedance | > 100 ohm |
Cartridge body material | Ground wood and resin composite |
Coilwire material | High Purity Copper (OFC) |
Cartridge colour | Black matte |
Cartridge weight | 35 g |