Royer SF12
Stereo Coincident Ribbon Microphone


The Royer/Speiden SF-12 stereo coincident ribbon microphone is one of the finest devices of its kind, combining high quality audio performance with outstanding stereo separation and imaging. It is a modern ribbon design with no audible diffraction effects or cavity resonance. An SF-12 is actually two matched microphones placed one above the other, each aimed 45 degrees from center. The frequency response is excellent regardless of the angle of sound striking the ribbons and off-axis coloration is negligible. The SF-12's extension cable comes with a Y adapter that splits into separate 3-pin male XLR connectors. The two connectors are labeled "Upper" and "Lower" for the upper and lower capsules of the microphone (when held vertically).

The two 1.8-micron ribbons are of pure aluminum (99.99%), each weighing approximately 1/3 milligram and producing superb transient response. The magnet/pole piece structure allows a wide uniform frequency range with no substantial peaks or dips. The case is ingot iron and forms part of the magnetic return circuit, an effective system with low leakage flux which accounts for the relatively high sensitivity in a trim package.

Lifetime to original owner (repair or replace at Royer's option)

Recommended Applications

  • Stereo & Distance miking
  • Overhead Drum miking
  • Percussion Instruments
  • Brass Instruments - Horn Sections
  • Woodwind Instruments
  • Stereo Acoustic Piano, Harp, etc
  • Choirs, Orchestras, String Sections
  • Acoustic & Electric Guitars

Royer SF12 Includes:

  • Protective wood case
  • 18' Cable - XLR5 to 2 standard 3 pin XLR male
  • Microphone sock
  • Optional Accessories: Windscreen, Shock Mount

Royer SF12 Features:

  • True stereophonic recording from one microphone
  • High SPL capabilities
  • No internal active electronics to overload or produce distortion up to maximum SPL rating
  • Extremely low residual noise
  • Ribbon element not affected by heat or humidity
  • Absence of high frequency phase distortion
  • Equal sensitivity from front or back of elements
  • Consistent frequency response regardless of distance
  • High efficiency, matching toroid transformers
  • Very low magnetic leakage

Royer SF12 Specifications:

  • Acoustic Operating Principle: Electrodynamic pressure gradient
  • Polar Pattern: Symmetrical figure-8
  • Generating Element: 1.8-micron aluminum ribbon
  • Frequency Response: 30-15,000 Hz ± 3dB
  • Sensitivity: > -52 dBv Re. 1v/pa
  • Output Impedance: 300 Ohms @ 1K (nominal)
  • Rated Load Impedance: >1500 Ohms @ 300 nominal impedance
  • Maximum SPL: >130dB
  • Output Connector: Male XLR 5 pin (stereo*)
  • Dimensions: 206 mm L X 25 mm W (8" L X 1" W)
  • Weight: 369 Grams (13 Oz)
  • Finish: Matte Black Chrome, Dull Satin Nickel (optional)

WARNING: Cancer and Reproductive Harm -

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