{"product_id":"royer-labs-sf2-matched-pair","title":"Royer Labs SF2 Matched Pair","description":"\u003cdiv lang=\"en\"\u003e\n  \u003cp\u003e\u003cstrong\u003eRoyer Labs SF-2 Matched Pair\u003c\/strong\u003e consists of two factory-matched SF-2 active ribbon microphones selected for identical sensitivity and frequency response, assembled as a stereo set for classical recording, scoring, and acoustic instrument applications. Factory matching is critical in stereo configurations — ORTF, X-Y, wide ambient overhead — where any mismatch between the two microphones directly affects stereo imaging accuracy and channel balance. The technical specification is fully identical to the single SF-2: crossfield motor assembly with four Neodymium magnets and Permendur pole pieces, 1.8-micron aluminum ribbon, active electronics at -38 dB sensitivity, and self-noise below 18 dB. Twenty SF-2 prototypes circulated across major studios and scoring stages for years before commercial release, establishing the model's reputation in classical and film recording circles before it ever appeared in a catalog.\u003c\/p\u003e\n\n  \u003ch3\u003eCrossfield motor and active electronics — two defining factors\u003c\/h3\u003e\n  \u003cp\u003eThe proprietary crossfield motor minimizes the front-to-rear acoustic path length inside the capsule: four Neodymium magnets surrounding the ribbon with Permendur iron pole pieces reduce this path to the shortest possible distance, enabling a flat response across 30 Hz – 15 kHz +\/- 2 dB without artificial high-frequency boost. This distinguishes the SF-2 from most ribbon microphones in the same price bracket, where the upper frequency limit is often a practical constraint, not a design achievement. The 1.8-micron aluminum ribbon's low mass delivers fast transient response — audible and measurable on strings, woodwinds, piano, and percussion. Active electronics — a hand-wired FET circuit with a custom toroidal transformer — provide 14 dB of free gain with no added noise and maintain constant optimal impedance loading on the ribbon regardless of what preamp follows in the chain. The 200-ohm output supports long cable runs without HF degradation.\u003c\/p\u003e\n\n  \u003ch3\u003eMatched pair — stereo and M\/S without level adjustment\u003c\/h3\u003e\n  \u003cp\u003eFactory matching eliminates the need to calibrate levels or correct tonal character between channels when setting up stereo configurations. The symmetrical figure-eight pattern makes each microphone usable as the Side element in an M\/S array, where sensitivity matching between Mid and Side has a direct impact on stereo width after matrixing. The SF-2 operates as a complete, self-sufficient microphone — requiring no high-gain specialist preamp and no impedance matching considerations from the console. The ribbon element is fully protected against phantom power, miswired cables, and electrical transients. Primary applications: choir and orchestra, classical piano, strings, woodwinds, harp, acoustic guitar and other plucked instruments, voice-over, ambient miking, room recording. Lifetime warranty to original owner; first ribbon replacement free.\u003c\/p\u003e\n\n  \u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTwo factory-matched SF-2 microphones with identical sensitivity and frequency response\u003c\/li\u003e\n    \u003cli\u003eProprietary crossfield motor: 4x Neodymium magnets + Permendur pole pieces — minimal acoustic path, maximum HF extension\u003c\/li\u003e\n    \u003cli\u003e1.8-micron aluminum ribbon — low mass, fast transient response\u003c\/li\u003e\n    \u003cli\u003eActive Ribbon electronics: -38 dB sensitivity — condenser microphone output level\u003c\/li\u003e\n    \u003cli\u003e14 dB free gain from toroidal transformer — zero added noise from active circuit\u003c\/li\u003e\n    \u003cli\u003eSelf-noise below 18 dB\u003c\/li\u003e\n    \u003cli\u003eConstant optimal ribbon load impedance regardless of preamp characteristics\u003c\/li\u003e\n    \u003cli\u003e200-ohm output — long cable runs without HF loss\u003c\/li\u003e\n    \u003cli\u003eFlat frequency response: 30 Hz – 15 kHz +\/- 2 dB\u003c\/li\u003e\n    \u003cli\u003eNegligible off-axis coloration; consistent response regardless of incidence angle\u003c\/li\u003e\n    \u003cli\u003eSymmetrical figure-eight — each microphone usable as Side element in M\/S\u003c\/li\u003e\n    \u003cli\u003eStainless steel body with internal baffle and damper; low external magnetic leakage\u003c\/li\u003e\n    \u003cli\u003eGold-plated XLR output connectors\u003c\/li\u003e\n    \u003cli\u003eRibbon elements protected from phantom power, miswired cables, and electrical transients\u003c\/li\u003e\n    \u003cli\u003eLifetime warranty to original owner; first ribbon replacement free\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eAcoustic operating principle: electrodynamic pressure gradient with active electronics\u003c\/li\u003e\n    \u003cli\u003ePolar pattern: figure-8\u003c\/li\u003e\n    \u003cli\u003eGenerating element: 1.8-micron aluminum ribbon\u003c\/li\u003e\n    \u003cli\u003eMotor assembly: crossfield — 4x Neodymium magnets + Permendur iron pole pieces\u003c\/li\u003e\n    \u003cli\u003eFrequency response: 30–15,000 Hz +\/- 2 dB\u003c\/li\u003e\n    \u003cli\u003eSensitivity: -38 dBv re. 1V\/Pa\u003c\/li\u003e\n    \u003cli\u003eSelf-noise: below 18 dB\u003c\/li\u003e\n    \u003cli\u003eOutput impedance: 200 ohms @ 1 kHz\u003c\/li\u003e\n    \u003cli\u003eRated load impedance: above 1,500 ohms\u003c\/li\u003e\n    \u003cli\u003eMaximum SPL: above 130 dB\u003c\/li\u003e\n    \u003cli\u003eOutput connector: XLR 3-pin (Pin 2 Hot), gold-plated\u003c\/li\u003e\n    \u003cli\u003ePower requirements: 48V phantom, 4 mA per microphone\u003c\/li\u003e\n    \u003cli\u003eDimensions: 142 mm (L) x 39 mm (base) x 25 mm (top)\u003c\/li\u003e\n    \u003cli\u003eWeight: 448 g (15.8 oz) per microphone\u003c\/li\u003e\n    \u003cli\u003eFinish: Matte Black\u003c\/li\u003e\n    \u003cli\u003eIncludes: two SF-2 microphones, SFS-2 shockmounts, mic socks, aluminum carrying case\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Royer Labs","offers":[{"title":"Default Title","offer_id":53669833670993,"sku":"28595","price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/RoyerLabsSF2MatchedPair1.jpg?v=1778493508","url":"https:\/\/wrdtunes.com\/fr-fr\/products\/royer-labs-sf2-matched-pair","provider":"Wired Tunes","version":"1.0","type":"link"}