{"product_id":"grado-timbre-opus4-phono-cartridge-low-output","title":"Grado Timbre Opus4 Phono Cartridge - Low Output","description":"\u003cdiv style=\"max-width:720px;margin:0 auto;padding:32px 24px 48px 24px;background:#ffffff;\"\u003e\n\u003ch2 style=\"font-size:1.25em;margin:0 0 0.35em 0;font-weight:600;\"\u003eGrado Timbre Opus4 Low Output: Wood-Body Moving Iron Cartridge\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe Opus4 is the entry point into Grado's Timbre Series of wood-body cartridges. Grado describes its sound as balanced and musical, with stability, coherence and separation.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThis listing is the low output version, rated at 1.0 mV. Grado also builds the Opus4 in high output and mono versions.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eMoving Iron Design\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eEvery Grado cartridge uses a moving iron design built on Joseph Grado's patented flux-bridger principle. The coils stay fixed while moving mass stays extremely low. Grado says this gives speed and control without the fragility of traditional moving coil designs.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eElliptical Diamond on an Aluminum Cantilever\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eA bonded elliptical diamond rides on an aluminum cantilever. The elliptical profile gives effective groove contact and reliable tracking. The aluminum cantilever adds a stable, controlled presentation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eAmerican Maple Wood Body\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eGrado chose American maple to help control resonance and shape the cartridge's tonal balance. The body supports stable playback across a wide range of tonearms.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eHow the Opus4 Low Output Fits Your System\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eIt mounts in a tonearm headshell and needs a phono stage. Grado specifies an input load of 10k to 47k ohms, and the cartridge is not sensitive to capacitive load.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eOutput is 1.0 mV, a quarter of the high output version's 4.0 mV. Make sure your phono stage has enough gain for a 1.0 mV cartridge. Set tracking force between 1.6 and 1.9 grams. This is the stereo version; for mono records, Grado offers a separate Opus4 Mono.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWho Is This Phono Cartridge Best For?\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eListeners new to Grado's wood cartridges\u003c\/strong\u003e — the Opus4 is the Timbre Series entry point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhono stages with plenty of gain\u003c\/strong\u003e — the low output version produces 1.0 mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnyone wanting a sturdy design\u003c\/strong\u003e — Grado's moving iron design keeps moving mass low and coils fixed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA wide range of tonearms\u003c\/strong\u003e — it weighs 8.3 grams with 20 μm\/mN compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot for\u003c\/strong\u003e — phono stages with too little gain for 1.0 mV; choose the high output version instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eHow Does It Connect to Your System?\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003eMount the cartridge in your tonearm headshell and connect the four tonearm leads.\u003c\/li\u003e\n\u003cli\u003eSet tracking force to 1.6 to 1.9 grams and align the cartridge.\u003c\/li\u003e\n\u003cli\u003eConnect your turntable to a phono stage set for a 10k to 47k ohm load.\u003c\/li\u003e\n\u003cli\u003eVersions sold: low output (this listing), high output and mono.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003ePairs Well With\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eBuild out your vinyl setup with:\u003c\/p\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/phono-preamplifiers\" style=\"color:#8a5a2b;\"\u003ePhono Preamplifiers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/turntables\" style=\"color:#8a5a2b;\"\u003eTurntables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/turntable-cables\" style=\"color:#8a5a2b;\"\u003eTurntable Cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.audioadvisor.com\/collections\/grado\" style=\"color:#8a5a2b;\"\u003eGrado\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat is the difference between the low and high output versions?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eThe low output version produces 1.0 mV, with 6 mH inductance and 70 ohms resistance. The high output version produces 4.0 mV, with 55 mH and 660 ohms.\u003c\/p\u003e\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat tracking force does it use?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eGrado specifies 1.6 to 1.9 grams.\u003c\/p\u003e\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eIs it a moving coil cartridge?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eNo. It uses Grado's moving iron design, based on Joseph Grado's patented flux-bridger principle.\u003c\/p\u003e\n\u003ch3 style=\"font-size:1.05em;margin:0.9em 0 0.25em 0;font-weight:600;\"\u003eWhat phono stage load does it need?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eGrado specifies 10k to 47k ohms. It is not sensitive to capacitive load.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eWhy Audio Advisor?\u003c\/h2\u003e\n\u003cul style=\"margin:0 0 0.9em 0;padding-left:1.4em;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e40+ Years of Expertise\u003c\/strong\u003e — Since 1981, we've helped over a million music lovers find the right gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-Day Money-Back Guarantee\u003c\/strong\u003e — Take your time. Listen, enjoy, and make sure it's right for you.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Experts, Real Help\u003c\/strong\u003e — Our team is here to answer your questions at 800-942-0220, weekdays 9am–6pm EST.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e — On orders over $49, delivered to your door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Payment Options\u003c\/strong\u003e — Financing available so you can start listening now.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:1.25em;margin:1.4em 0 0.35em 0;font-weight:600;\"\u003eLearn More\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 0.9em 0;line-height:1.55;\"\u003eWant to learn more about phono cartridges? Visit our \u003ca href=\"https:\/\/learningcenter.audioadvisor.com\/\" style=\"color:#8a5a2b;\"\u003eLearning Center\u003c\/a\u003e for guides, tips, and expert advice.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Grado Labs","offers":[{"title":"New","offer_id":47168863174829,"sku":"NEW-GROPUS4-LOW","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/3708\/1773\/files\/GROPUS4.png?v=1793736552","url":"https:\/\/www.audioadvisor.com\/products\/grado-timbre-opus4-phono-cartridge-low-output","provider":"Audio Advisor","version":"1.0","type":"link"}