{"product_id":"ortofon-om1s-mm-cartridge-new-old-stock","title":"Ortofon OM1S MM Cartridge (New Old Stock)","description":"\u003cdiv class=\"plain\"\u003e\n\u003cdiv class=\"plain\"\u003e\n\u003cdiv class=\"plain\"\u003e\n\u003cdiv\u003eThe OM 1S is very closely related to the current OM5S, it's a discontinued model and available only whilst stocks last\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eHoused 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\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis model features an Spherical diamond stylus and thanks to the removable stylus assembly you can \u003cspan\u003efit \u003c\/span\u003e\u003cspan\u003ea stylus from\u003c\/span\u003e 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.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eSpecifications\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"plain\"\u003e\n\u003cdiv\u003eInternal impedance, DC resistance  - 750 Ohm\u003cbr\u003eInternal inductance  -  450 mH\u003cbr\u003eRecommended load resistance  -  47 kOhm\u003cbr\u003eRecommended load capacitance  -  200-500 pF\u003cbr\u003eCartridge colour, body\/stylus  -  Black\/Black\u003cbr\u003eCartridge weight incl. extra weight -  5 g\u003cbr\u003eCartridge weight excl. extra weight -  2.5 g\u003cbr\u003eReplacement stylus unit  -  Stylus 5S   Output voltage at 1000 Hz, 5cm\/sec.  -  4.5 mV\u003cbr\u003eChannel balance at 1 kHz  -  2 dB\u003cbr\u003eChannel separation at 1 kHz  -  20 dB\u003cbr\u003eChannel separation at 15 kHz  -  12 dB\u003cbr\u003eFrequency response  -  20-22.000 Hz \u003cbr\u003eTracking ability at 315Hz at recommended tracking force *)  -  60 µm\u003cbr\u003eCompliance, dynamic, lateral  -  20 µm\/mN\u003cbr\u003eStylus type  -  Spherical\u003cbr\u003eStylus tip radius  -  R 18 µm *) Typical valueTracking force range  -  1.5-2.0 g (15-20 mN)\u003cbr\u003eTracking force, recommended  -  1.75 g (17.5 mN)\u003cbr\u003eTracking angle  -  20°\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Deco Audio Shop","offers":[{"title":"Default Title","offer_id":58009139806472,"sku":"da_ortofon_om1s_cart","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/3603\/7640\/files\/OM_1S_1.webp?v=1781281560","url":"https:\/\/decoaudioshop.co.uk\/products\/ortofon-om1s-mm-cartridge-new-old-stock","provider":"Deco Audio Shop","version":"1.0","type":"link"}