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Deco Audio Shop

Ortofon OM1S MM Cartridge (New Old Stock)

Ortofon OM1S MM Cartridge (New Old Stock)

£30.00 GBP
£30.00 GBP
Sale Sold out
Taxes included.
The OM 1S is very closely related to the current OM5S, it's a discontinued model and available only whilst stocks last
Housed in the classic OM series housing it's instantly recognisable for the iconic 'Concorde' shape, and it's the lightest MM cartridge that Ortofon make with a body made from a low mass, low resonance Noryl material. It includes a weight that is housed in the mounting bracket - this is kept in place with most arms, but for very low mass arms it can be removed dropping its mass to just 2.5g

This model features an Spherical diamond stylus and thanks to the removable stylus assembly you can fit a stylus from other models in the range including Stylus 3S, Stylus 5E, Stylus 10, Stylus 20, Stylus 30, Stylus 40 and the 78 RPM only Stylus 78.

Specifications
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 5S   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 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 valueTracking force range  -  1.5-2.0 g (15-20 mN)
Tracking force, recommended  -  1.75 g (17.5 mN)
Tracking angle  -  20°

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