Royer Labs is shipping the SF-24 phantom-powered stereo ribbon microphone. According to the manufacturer, it has a sensitivity similar to phantom powered condenser microphones, allowing the SF-24 to be used with nearly any preamplifier. The mic features a pair of 1.8-micron aluminum ribbons and two balanced, discrete head amplifier systems using low noise FET''s that deliver an output sensitivity rating of –38 dB. The mic's self-noise is below 18 dB. The SF-24 is housed in an iron case that forms part of the magnetic return circuit.
The SF-24 holds a pair of matched ribbon microphones, placed one above the other, each aimed 45 degrees from center in the Blumlein configuration. The mic cable includes a Y adapter that splits into separate 3-pin male XLR connectors labeled Upper and Lower for the microphone''s upper and lower capsules. The SF-24 comes with a shock mount, a mic sock, and a protective case.