{"product_id":"royer-ro-sf24","title":"Royer SF-24 Active Stereo Ribbon Microphone (Matte Black)","description":"\u003cp\u003eThe Royer SF-24 is a phantom-powered stereo ribbon microphone, the active version of Royer's SF-12. Like the SF-12, it holds two matched ribbon mics one above the other, each aimed 45 degrees from center in a Blumlein pair, so one mic records true stereo in Blumlein or mid-side. Its active electronics raise the output to -38 dB, 14 dB more than the SF-12 and on par with a phantom-powered condenser, while self-noise stays under 18 dB.\u003c\/p\u003e\n\n\u003ch3\u003eActive Electronics\u003c\/h3\u003e\n\u003cp\u003eEach side has its own fully balanced, discrete head amplifier with a specially wound toroidal transformer and low-noise FETs, so the SF-24 works with any preamp of average gain. The extra level comes from the transformers and the circuit runs below unity, so it adds no noise. The electronics give each ribbon the correct load whatever preamp follows, allow very long cable runs, and protect the ribbons from phantom power, electrical glitches and miswired cables.\u003c\/p\u003e\n\n\u003ch3\u003eStereo and Mono\u003c\/h3\u003e\n\u003cp\u003eThe supplied extension cable ends in a splitter with two 3-pin XLR connectors marked Upper and Lower, one for each ribbon. The two sides stay in phase when summed to mono, and either side works on its own as a mono figure-8 mic. The SF-24 suits classical piano, drum overheads, orchestras and ensembles, percussion, acoustic instruments, vocal groups and choirs.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhantom-powered circuitry for high output and correct ribbon loading\u003c\/li\u003e\n  \u003cli\u003eTrue stereo (Blumlein and M-S) recording from one microphone\u003c\/li\u003e\n  \u003cli\u003eHigh SPL capability, with no distortion up to the maximum rating\u003c\/li\u003e\n  \u003cli\u003eExtremely low residual noise\u003c\/li\u003e\n  \u003cli\u003eRibbons unaffected by heat or humidity\u003c\/li\u003e\n  \u003cli\u003eNo high-frequency phase distortion\u003c\/li\u003e\n  \u003cli\u003eEqual sensitivity from the front and back of each ribbon\u003c\/li\u003e\n  \u003cli\u003eConsistent frequency response regardless of distance\u003c\/li\u003e\n  \u003cli\u003eHigh-efficiency matching toroidal transformers\u003c\/li\u003e\n  \u003cli\u003eVery low magnetic leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating principle:\u003c\/strong\u003e Electrodynamic pressure gradient with active electronics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePolar pattern:\u003c\/strong\u003e Crossed figure-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElements:\u003c\/strong\u003e Two 1.8-micron aluminum ribbons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency response:\u003c\/strong\u003e 40 Hz to 15 kHz, +\/- 2 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e -38 dB (re. 1 V\/Pa, +\/- 1 dB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-noise:\u003c\/strong\u003e Under 18 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput impedance:\u003c\/strong\u003e 200 ohms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated load impedance:\u003c\/strong\u003e 1,000 ohms minimum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum SPL:\u003c\/strong\u003e Over 130 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput connector:\u003c\/strong\u003e 5-pin male XLR (stereo)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 48 V phantom only, 4 mA per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 270 mm long, 39 mm at the base, 25 mm at the top (10 5\/8 x 1.5 x 1 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 583 g (20.5 oz)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Matte black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLonger cable runs:\u003c\/strong\u003e EXC50 (50 ft) and EXC100 (100 ft) 5-conductor extension cables\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 years on materials, workmanship and finish to the original owner; first re-ribbon free within one year\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSF-24 microphone\u003c\/li\u003e\n  \u003cli\u003eSling-Shock RSM-SS24 shock mount\u003c\/li\u003e\n  \u003cli\u003e25 ft 5-pin XLR extension cable\u003c\/li\u003e\n  \u003cli\u003eY splitter cable with two 3-pin male XLR connectors (Upper and Lower)\u003c\/li\u003e\n  \u003cli\u003eMicrophone sock\u003c\/li\u003e\n  \u003cli\u003eCable ties\u003c\/li\u003e\n  \u003cli\u003eHard carrying case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Royer","offers":[{"title":"Default Title","offer_id":67380202275065,"sku":"RO-SF24","price":5699.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/5766\/1177\/files\/sf24-1.jpg?v=1792176221","url":"https:\/\/blackoutaudio.com\/products\/royer-ro-sf24","provider":"Blackout Audio","version":"1.0","type":"link"}