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Royer SF-24 Active Stereo Ribbon Microphone USED

Royer SF-24 Active Stereo Ribbon Microphone USED
Beautiful Royer SF-24 phantom powered stereo ribbon microphone in immaculate condition. Complete with case and accessories.

The SF-24 stereo ribbon microphone is a phantom powered version of our popular SF-12 stereo ribbon microphone. It combines the SF-12’s high quality audio performance, outstanding stereo separation and imaging with our exclusive active electronics system for ribbon microphones. The SF-24’s output of -38 dB is a full 14 dB more sensitive than our non-powered SF-12, putting its sensitivity on par with that of phantom powered condenser microphones. The unique electronics and custom designed FET’s used in the SF-24 allow for ultra-quiet operation, with self-noise of lower than 18 dB.

Like an SF-12, the SF-24 is actually two matched ribbon microphones placed one above the other in a coincident pair, each aimed 45 degrees from center in the classic Blumlein configuration. The magnet/pole piece structure of each ribbon 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 sound striking the ribbons and off-axis coloration is negligible.

Technical Data

  • Acoustic Operating Principle: Electrodynamic pressure gradient with active electronics
  • Polar Pattern: Crossed figure-8's
  • Generating Element: 1.8-micron aluminum ribbon
  • Frequency Response: 40-15,000 Hz +/- 2dB
  • Sensitivity: -38 dB (re. 1v/pa +/-1dB)
  • Self-Noise: < 18 dB
  • Output Impedance: 200 Ohms
  • Rated Load Impedance: 1K-Ohm
  • Maximum SPL: >130dB
  • Output Connector: Male XLR 5 pin (stereo*)
  • Power Requirements: 48-Volt Phantom Only
  • Supply Current: 4 mA per channel
  • Dimensions: 270mm X 39mm (base) X 25mm (top) (10 5/8" X 1.5" X 1")
  • Weight: 583 grams (20.5 oz)
  • Finish: Optical Black, 18K Gold (optional)
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