{"product_id":"ortofon-spu-1-s-moving-coil-phono-cartridge-and-headshell","title":"Ortofon SPU #1 S Moving Coil phono Cartridge and Headshell","description":"\u003cp\u003eOrtofon SPU #1 S Cartridge\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Ortofon SPU #1 S continues one of the longest-standing traditions in analogue audio, preserving the unmistakable “Ortofon sound” that has been trusted since the earliest days of moving coil cartridge design. Originally adopted by broadcasting companies, the SPU established a reputation for rich, musical reproduction that remains highly regarded today.\u003c\/p\u003e\n\u003cp\u003eDesigned for moderate to high-mass tonearms with SME-type connections, the SPU #1 S offers a classic analogue presentation with strong tonal weight and smooth musical flow. Its spherical stylus provides stable tracking and a forgiving nature, making it well-suited to a wide range of vinyl, including older records.\u003c\/p\u003e\n\u003cp\u003eConstructed with a ground wood and resin composite body, the cartridge benefits from natural resonance control, contributing to its warm and cohesive sound. The low internal impedance ensures efficient signal transfer and compatibility with suitable moving coil phono stages or transformers.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eClassic SPU moving coil cartridge design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with SME-type tonearms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpherical stylus for smooth, stable tracking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRich, full-bodied “Ortofon sound”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for moderate to high-mass tonearms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGround wood and resin body for resonance control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical Specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOutput Voltage: 0.18 mV (at 1kHz, 5cm\/sec)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannel Balance: 1.5 dB (at 1kHz)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannel Separation: 20 dB (1kHz), 10 dB (15kHz)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency Response: 20 Hz – 20 kHz (±3 dB)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTracking Ability: 65 µm (at 315Hz)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompliance (Dynamic, Lateral): 10 µm\/mN\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStylus Type: Spherical\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStylus Radius: R 18 µm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTracking Force: 4.0 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTracking Angle: 20°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal Impedance: 2Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended Load Impedance: \u0026gt; 10Ω\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuild \u0026amp; Design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCartridge Body: Ground Wood \u0026amp; Resin Composite\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eColour: Shiny Black\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 30 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat’s Included:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOrtofon SPU #1 S Cartridge (integrated headshell)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDocumentation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: This product is available for in-store demonstration. Visit the Spinning Room showroom in Leeds to experience the SPU #1 S in person.\u003c\/p\u003e","brand":"Ortofon Cartridges","offers":[{"title":"Default Title","offer_id":58297855476096,"sku":"RTF-SPU-1-S","price":559.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/6926\/1184\/files\/rs_w_1200_h_1200-1_caf470aa-7a3a-401a-8b19-bb024b26483c.png?v=1781876628","url":"https:\/\/thespinningroomhifi.co.uk\/products\/ortofon-spu-1-s-moving-coil-phono-cartridge-and-headshell","provider":"The Spinning Room Hifi","version":"1.0","type":"link"}