{"product_id":"cloud-jrs-34-ribbon-mic","title":"Cloud JRS-34 Ribbon Mic","description":"\u003c!-- Video Section --\u003e\n\u003cdiv style=\"margin:20px auto 10px auto; text-align:center; max-width:800px;\"\u003e\n  \u003ch2 style=\"font-size:20px; margin-bottom:12px;\"\u003eCloud JRS-34 Ribbon Microphone Overview\u003c\/h2\u003e\n  \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/QBcNbX8c48U?si=uYRJc3fict84G7Bu\" frameborder=\"0\" allowfullscreen style=\"width:100%; max-width:800px; height:450px; display:block; margin:0 auto; border-radius:8px;\"\u003e\n  \u003c\/iframe\u003e\n\u003c\/div\u003e\n\n\n\u003c!-- Section 1 --\u003e\n\u003cdiv class=\"par-section\"\u003e\n  \u003cdiv class=\"par-image\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/JRS34P_LAngle_d140c3b9-b5a0-4361-a326-b408daba0cbd.png?v=1778170202\" alt=\"Cloud Microphones JRS-34 passive ribbon microphone showing full body and internal spring-mounted suspension system with custom wood case\"\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"par-text\"\u003e\n    \u003ch2\u003eBorn from RCA's Most Celebrated Work. Built for Yours.\u003c\/h2\u003e\n    \u003cp\u003eThe name JRS-34 carries a specific weight. Jon R. Sank spent his career at RCA designing the ribbon microphones that shaped the sound of American recording: the 44, the BK-11A, the instruments that engineers spent the rest of the 20th century hunting for on the vintage market. His son, Stephen Sank, grew up inside that world. When Rodger Cloud set out to build a ribbon microphone in 2006 after years of refurbishing vintage units, Stephen Sank was the collaborator he needed. The JRS-34 is their shared answer to what a new ribbon microphone built on that foundation should actually sound like.\u003c\/p\u003e\n    \u003cp\u003eThe result is not a replica and not an homage. It is a working professional instrument that draws directly on RCA's engineering principles while improving on them in every measurable dimension. Each ribbon element is cut, corrugated, and installed by hand, exactly as prescribed by Harry Olson's original RCA method, and then refined with a custom CineMag transformer, patented rounded magnet geometry, and an internal spring-suspension system that protects the element from handling shock without anchoring it in ways that compromise its acoustic integrity.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n \n\u003c!-- Section 2 --\u003e\n\u003cdiv class=\"par-section reverse\"\u003e\n  \u003cdiv class=\"par-image\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/JRS34P_SFront_6ea4d089-542b-452e-b6a2-117857d04ed9.png?v=1778170202\" alt=\"Cloud JRS-34 ribbon microphone figure-8 polar pattern close-up showing 1.8-micron hand-corrugated ribbon element and rounded magnet technology\"\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"par-text\"\u003e\n    \u003ch2\u003eThe 1.8-Micron Ribbon That Defines the Sound\u003c\/h2\u003e\n    \u003cp\u003eAt 1.8 microns thick and 0.19\" wide across a 2.35\" length, the JRS-34's ribbon element sits at the edge of what is physically achievable in ribbon fabrication. This is where the character comes from. A ribbon this thin responds to air pressure with a speed and delicacy that condenser capsules, with all their electrical precision, cannot replicate. Transients arrive naturally softened at the leading edge, not by EQ or limiting, but by the physics of a thin metal foil moving through a magnetic field. Brass loses its harshest bite. Strings gain body without losing articulation. Voices land with a presence and weight that feels analog in every sense of the word.\u003c\/p\u003e\n    \u003cp\u003e\n      \u003cstrong\u003ePolar pattern:\u003c\/strong\u003e Figure-8, -35 dB null at 90 degrees\u003cbr\u003e\n      \u003cstrong\u003eRibbon element:\u003c\/strong\u003e 0.19\" wide x 2.35\" long x 1.8 microns thick, hand-cut and hand-corrugated\u003cbr\u003e\n      \u003cstrong\u003eOutput sensitivity:\u003c\/strong\u003e -49 dBv\/Pa\u003cbr\u003e\n      \u003cstrong\u003eOutput impedance:\u003c\/strong\u003e 150 ohms nominal\u003cbr\u003e\n      \u003cstrong\u003eRecommended load impedance:\u003c\/strong\u003e 1kΩ or greater\u003cbr\u003e\n      \u003cstrong\u003eFrequency response:\u003c\/strong\u003e 20 Hz to above 20 kHz\u003cbr\u003e\n      \u003cstrong\u003eMaximum SPL:\u003c\/strong\u003e 138 dB at 1 kHz\u003cbr\u003e\n      \u003cstrong\u003eTransformer:\u003c\/strong\u003e Custom CineMag\u003cbr\u003e\n      \u003cstrong\u003eMagnet:\u003c\/strong\u003e Patented rounded magnet technology\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n \n\u003c!-- Section 3 --\u003e\n\u003cdiv class=\"par-section\"\u003e\n  \u003cdiv class=\"par-image\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/JRS34P_RAngle_60a5a9a3-2f10-499a-8363-eebb4797479a.png?v=1778170202\" alt=\"Cloud JRS-34 passive ribbon mic positioned on studio stand in front of grand piano showing orchestral tracking application\"\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"par-text\"\u003e\n    \u003ch2\u003ePassive Purity or Active Headroom: Choose Your Configuration\u003c\/h2\u003e\n    \u003cp\u003eThe JRS-34 is offered in passive form, which is a deliberate choice for engineers who understand impedance loading and want full control over it. When a passive ribbon sees different preamp input impedances, the frequency response, transient character, and tonal weight of the mic shift perceptibly. That variation is a feature. Paired with a transformer-coupled preamp running at low-to-moderate gain, the JRS-34 passive responds with the kind of thick, unhurried low midrange that engineers spend thousands chasing in vintage units. Paired with a higher-impedance input, it opens up, breathes more freely, and loses some of that classic warmth in exchange for detail and extension.\u003c\/p\u003e\n    \u003cp\u003eFor setups where that control isn't the goal, or where the preamp gain structure makes passive ribbon operation impractical, a Cloudlifter inline will restore full headroom and effectively replicate what the active circuit version delivers: an isolated 3kΩ input impedance that removes preamp variability from the equation and adds up to +25dB of clean gain before the signal ever reaches the interface. Either path produces the same fundamental character. The choice is about control versus convenience, not quality.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n \n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePassive ribbon microphone designed by Rodger Cloud in direct collaboration with Stephen Sank, son of RCA ribbon designer Jon R. Sank, combining principles of the RCA 44A and the Jon-Sank-designed RCA BK-11A\u003c\/li\u003e\n  \u003cli\u003e1.8-micron ribbon element, 0.19\" wide x 2.35\" long, hand-cut and hand-corrugated in Tucson, Arizona using Harry Olson's original RCA installation method\u003c\/li\u003e\n  \u003cli\u003ePatented rounded magnet technology for optimized magnetic field geometry across the ribbon element\u003c\/li\u003e\n  \u003cli\u003eCustom CineMag transformer for optimal passive output performance and loading characteristics\u003c\/li\u003e\n  \u003cli\u003eFigure-8 polar pattern with -35 dB null at 90 degrees, ideal for mid-side, room-ambient, and source-isolation applications\u003c\/li\u003e\n  \u003cli\u003eOutput sensitivity: -49 dBv\/Pa; output impedance: 150 ohms nominal; recommended load: 1kΩ or greater\u003c\/li\u003e\n  \u003cli\u003eFrequency response: 20 Hz to above 20 kHz\u003c\/li\u003e\n  \u003cli\u003eMaximum SPL: 138 dB at 1 kHz, suitable for brass, amplified guitar, and high-SPL acoustic sources\u003c\/li\u003e\n  \u003cli\u003eInternal spring-suspension system with four springs (two of nickel-plated beryllium-copper alloy, also serving as signal conductors), isolating the entire ribbon motor from the body without compromising acoustic performance\u003c\/li\u003e\n  \u003cli\u003eMount offers 180-degree range of motion for precise off-axis positioning\u003c\/li\u003e\n  \u003cli\u003eRequires high-gain preamp with 1kΩ or greater input impedance; Cloudlifter CL-1 recommended for moderate preamp setups\u003c\/li\u003e\n  \u003cli\u003eDoes not pass phantom power to the ribbon element; fully safe with standard phantom-equipped preamps and interfaces\u003c\/li\u003e\n  \u003cli\u003eDimensions: 7.75\" x 3\" x 1.75\" \/ Weight: 1.02 lbs\u003c\/li\u003e\n  \u003cli\u003eHandmade entirely in Tucson, Arizona, USA with US-sourced components\u003c\/li\u003e\n  \u003cli\u003e2-year warranty on the ribbon element; limited lifetime warranty on all other parts (with registration)\u003c\/li\u003e\n  \u003cli\u003eIncludes custom handcrafted wood case and microfiber mic cover\u003c\/li\u003e\n\u003c\/ul\u003e\n \n\u003ch3\u003eCloud JRS-34 Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ccc;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n      \u003cth style=\"text-align:left; padding:10px; border:1px solid #ccc; width:35%;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"text-align:left; padding:10px; border:1px solid #ccc;\"\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eTransducer Type\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003ePassive Ribbon (Velocity)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003ePolar Pattern\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eFigure-8 (Bidirectional), -35 dB null at 90 degrees\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eRibbon Element Dimensions\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e0.19\" wide x 2.35\" long x 1.8 microns thick\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eRibbon Installation\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eHand-cut, hand-corrugated, and hand-installed\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eTransformer\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eCustom CineMag\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eMagnet Technology\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003ePatented Rounded Magnet\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eFrequency Response\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e20 Hz to above 20 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eOutput Sensitivity\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e-49 dBv\/Pa\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eOutput Impedance\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e150 ohms nominal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eRecommended Load Impedance\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e1kΩ or greater\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eMaximum SPL\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e138 dB at 1 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003ePhantom Power\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eNot required; does not pass phantom to ribbon element\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eSuspension System\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eInternal 4-spring motor suspension; 2 springs nickel-plated beryllium-copper alloy (signal conductors)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eMount Range of Motion\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e180 degrees\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eConnector\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eIntegrated 3-pin XLR (female)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eDimensions\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e7.75\" x 3\" x 1.75\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eWeight\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e1.02 lbs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eManufacturing\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eHandmade entirely in Tucson, Arizona, USA with US-sourced components\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eRibbon Element Warranty\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e2 years\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eAll Other Parts Warranty\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eLimited Lifetime (with registration)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n \n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #ccc;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n      \u003cth style=\"text-align:left; padding:10px; border:1px solid #ccc; width:35%;\"\u003eItem\u003c\/th\u003e\n      \u003cth style=\"text-align:left; padding:10px; border:1px solid #ccc;\"\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eCloud JRS-34 Passive Ribbon Microphone\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003e1x Handmade ribbon microphone with integrated XLR connector and 180-degree swivel mount\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eCustom Wood Case\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eHandcrafted storage and presentation case\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#ffffff;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eMicrofiber Mic Cover\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eProtective microfiber cloth for storage and cleaning\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#fafafa;\"\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eDocumentation\u003c\/td\u003e\n      \u003ctd style=\"padding:10px; border:1px solid #ccc;\"\u003eWarranty card and product registration information\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Cloud Microphones","offers":[{"title":"Default Title","offer_id":48514446295195,"sku":"JRS-34P","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/JRS34P_RAngle_60a5a9a3-2f10-499a-8363-eebb4797479a.png?v=1778170202","url":"https:\/\/proaudioreserve.com\/products\/cloud-jrs-34-ribbon-mic","provider":"Pro Audio Reserve","version":"1.0","type":"link"}