Royer SF-24V Vacuum Tube Stereo Ribbon Microphone Royer Labs in Burbank, Calif., a leading manufacturer of high quality ribbon microphones, is now shipping the SF-24V Vacuum Tube Stereo Ribbon Microphone ($5,895 MSRP). Microphone designer David Royer founded two companies to market his products, Mojave Audio for condenser microphone designs, and Royer Labs for ribbon microphone designs. I had used a different mic back then and wasn’t that pleased by the result. Royer Labs. Royer microphones are favored worldwide among tracking and front-of-house engineers who are ribbon enthusiasts. I'd like to hear a stock V69 up against the Royer mod mics. The SF-24V is the tube version of Royer’s SF-24 phantom-powered stereo ribbon microphone. Marshall makes the V69 tube mic, which sells for around $300, but it sure doesn't have a Jensen transformer in it! I re-surrected a mic which I had converted to a tube mic (courtesy of Dave Royer who published an article on this way back). This signal can then be fed to a vacuum tube If you've ever seen the Chinese transformers that come in these you know how pathetic the manufacture is. The R-122V is a compact, monaural, bi-directional microphone. The company’s latest release, the SF-24V, combines the best of Royer’s body, mount and electronic designs, which takes this newbie up a notch. The R-122V is the pinnacle of our R-Series line, a world class tube ribbon microphone exhibiting unparalleled richness, depth and detail, particularly in the midrange frequencies. The result will be an audio signal at the junction of the microphone's backplate and the polarizing resistor. Royer Labs is now shipping its R-122V ($2,995) vacuum tube ribbon microphone, a limited production model and the company’s newest addition to its R-Series microphone line. the capacitance of the microphone capsule is a variable quantity, the voltage across it will vary as the motion of the diaphragm changes the capacitance. Designed as a premium instrument for stereo and distance miking applications, the new SF-24V employs a dual vacuum tube design, and is said […] For me DIY is more of an educational process, anyway. One tube microphone from Berlin and one from Barstow: By David Royer 1 2 3 A do-it-yourself Tube Mic & de-mystifying the Neumann U-47 From Tape Op: No. Royer R121. 25 • Sept/Oct 2001 The Neumann U-47 microphone is a much sought-after and expensive tube microphone, which does its … In case you’d like to do the same follow the link. Royer Labs was the earlier of these two companies and is the one for which he is … We thought the R121 sounded very musical, though also quite coloured: it generally pushed up the upper mids more than any other mic on test, and we felt the sound was therefore quite spiky, though we also thought this might also help some vocals to cut through a mix more easily. Royer R122V tube ribbon microphone. The R-122V uses the same patented large-ribbon transducer assembly found in the R-121 and R-122 active ribbon microphones.