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Ortofon Magnetic Cartridge in Retail Pack - Part # OM1S

  • $86.06
  • Save $18



Ortofon Magnetic Cartridge with OM1S Spherical Diamond Stylus.

Part No. OM1S.

Can't find a suitable stylus? Why not replace the whole cartridge?

The OM 1S is a magnetic cartridge (MM) with a Spherical shaped stylus that provides balanced and distortion-free playback for general purpose applications.

If your tonearm has a standard headshell or a cartridge mount, then step up to optimal sound reproduction with OM’s. A glance at anyone of these cartridges will reveal Ortofon's answer to perfect tonearm matching. Ingeniously tucked into the top of the mounting bracket is a tiny, removable weight-plate.

If your tonearm is an standard tonearm, just leave the weight-plate.

If your tonearm is one of the low mass types, then simply remove the weight. The mass of your OM cartridge is now a mere 2.5g.

Technical Specifications:-

  • Output voltage at 1000 Hz, 5cm/sec.  -  4.5 mV
  • Channel balance at 1 kHz  -  2 dB
  • Channel separation at 1 kHz  -  20 dB
  • Channel separation at 15 kHz  -  12 dB
  • Frequency range at - 3dB  -  20-20,000 Hz
  • Frequency response  -  20-22,000 Hz
  • Tracking ability at 315Hz at recommended tracking force *)  -  60 µm
  • Compliance, dynamic, lateral  -  20 µm/mN
  • Stylus type  -  Spherical
  • Stylus tip radius  -  R 18 µm *) Typical value
  • Tracking force range  -  1.5-2.0 g (15-20 mN)
  • Tracking force, recommended  -  1.75 g (17.5 mN)
  • Tracking angle  -  20°
  • Internal impedance, DC resistance  - 750 Ohm
  • Internal inductance  -  450 mH
  • Recommended load resistance  -  47 kOhm
  • Recommended load capacitance  -  200-500 pF
  • Cartridge colour, body/stylus  -  Black/Black
  • Cartridge weight incl. extra weight -  5 g
  • Cartridge weight excl. extra weight -  2.5 g
  • Replacement stylus unit  -  Stylus 1S

We have been supplying appliance parts to the trade and retail for over 25 years. Buy with confidence.


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