Royer Labs SF-24 Phantom-Powered Active Small-Element Stereo Ribbon Microphone

The SF-24 stereo ribbon is an active phantom-powered version of Royer’s popular SF-12. It combines the SF-12's high quality audio performance, outstanding stereo separation and imaging with Royer’s exclusive active electronics. The SF-24's output of -38dB is 14dB more sensitive than the passive SF-12, putting its sensitivity on par with most condenser microphones. The unique electronics and custom-designed FET's used in the SF-24 allow for ultra-quiet operation, with self-noise below 18dB. Like the SF-12, the SF-24 is actually two matched ribbon transducers configured in a coincident pair; each aimed 45 degrees from center in the classic Blumlein configuration. The magnet/pole piece structure of each transducer delivers a wide, uniform frequency response with no substantial peaks or dips, and the 1.8-micron ribbons produce superb transient response. Frequency response is excellent regardless of the angle of incidence, and off-axis coloration is negligible.

• Phantom powered circuitry provides high output and impedance matching
• True stereophonic (Blumlein and M-S) recording from one microphone
• High SPL capabilities
• No distortion up to maximum SPL rating
• Extremely low residual noise