{"product_id":"ortofon-spu-mono-gm-mkii-mc-cartridge","title":"Ortofon SPU Mono GM MKII MC Cartridge","description":"The SPU Mono GM MKII is a high output Moving Coil (MC) cartridge with a with a spherical stylus profile, for the playback of early 25µm mono recordings. \u003cbr\u003e\u003cbr\u003e \n\nThe SPU Mono GM MKII provides an authentic method of playing back these early vinyl recordings with remarkable level of sonic accuracy, and its high output negates the need for a moving coil transformer.\u003cbr\u003e\u003cbr\u003e\n\n\n\n\n\u003cb\u003eTechnical data\u003c\/b\u003e\u003cbr\u003e   \nOutput voltage at 1000 Hz, 5cm\/sec. 3 mV \u003cbr\u003e\nFrequency range at - 3dB 20-20.000 Hz \u003cbr\u003e\nFrequency response  20-15.000 Hz + 2 \/ - 1 dB \u003cbr\u003e\nTracking ability at 315Hz at recommended tracking force *) \u0026gt; 70 µm \u003cbr\u003e\nCompliance, dynamic, lateral 12 µm\/mN \u003cbr\u003e\nStylus type Spherical \u003cbr\u003e\nStylus tip radius R 25 µm \u003cbr\u003e\nTracking force range 3,0-5,0 g (30-50 mN) \u003cbr\u003e\nTracking force, recommended 3,5 g (35 mN) \u003cbr\u003e\nTracking angle 20° \u003cbr\u003e\nInternal impedance, DC resistance 100 Ohm\u003cbr\u003e \nRecommended load impedance 47 kOhm \u003cbr\u003e\nCartridge body material Grinded wood \u003cbr\u003e\nCoilwire material High Purity Copper (OFC) \u003cbr\u003e\nCartridge colour Black \u003cbr\u003e\nCartridge weight 30 g \u003cbr\u003e\n","brand":"Ortofon","offers":[{"title":"Default Title","offer_id":57409096548684,"sku":"ORTOFONSPUMONOGMMKII","price":554.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Ortofon-SPU-Mono-GM-mk-II.jpg?v=1777478101","url":"https:\/\/www.stoneaudio.co.uk\/products\/ortofon-spu-mono-gm-mkii-mc-cartridge","provider":"Stone Audio","version":"1.0","type":"link"}