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Royer SF-24 - Active Stereo Ribbon Microphone

by Royer
£4,400.40 inc. vat
£3,667.00 ex. vat
Please contact us for availability.

Royer SF-24 - Active Stereo Ribbon Microphone

The Royer SF-24 is an active stereo ribbon microphone with two ribbons stacked vertically in a Blumlein configuration at 90 degrees to one another. 

The SF-24 is a phantom powered version of the SF-12 and the active circuitry means that is has a higher output and is as sensitive as standard condenser microphones. Standard ribbon microphones require preamps with large amounts of gain, but because the SF-24 has a higher output, it will work effectively with most preamps.

Just like the SF-12, the SF-24 has great stereo separation, imaging and phase compatibility between the sides. A Y-adapter is included which splits into two labelled XLR connectors for the upper and lower capsules.

The SF-24 performs brilliantly across many applications including drum overheads, orchestras, piano and other acoustic instruments. Depending on the microphone placement, the SF-24 can be particularly useful for capturing the acoustic environment as well.

Royer SF-24 Features

  • 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
  • Ribbon elements are 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 toroidal transformers
  • Very low magnetic leakage


  • Drum Overheads
  • Percussion Instruments
  • Brass and Woodwinds
  • Acoustic Piano
  • Harp
  • Choirs
  • Solo Strings
  • String Sections
  • Orchestra
  • Acoustic & Electric Guitars
  • Vocal Groups (MP3 example)
  • Ambiance
  • Stereo to Mono

Royer SF-24 Specifications

  • 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)