Royer SF-24 Active Stereo Ribbon Mic

OUR PART #: SF24

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The SF-24 stereo ribbon microphone is a phantom powered version of our popular SF-12 stereo ribbon microphone, combining the SF-12's high quality audio performance... ...Read more

Royer SF-24 Active Stereo Ribbon Mic Image 1
Royer SF-24 Active Stereo Ribbon Mic
Our Price: $3,999.00
List Price: $4,999.00
You save 20%!

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Product Overview

The SF-24 stereo ribbon microphone is a phantom powered version of our popular SF-12 stereo ribbon microphone, combining 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 SR-24 is actually two matched ribbon microphones placed one above the other, each aimed 45 degrees from center in the classic Blumlein configuration. The magnet/polepiece structure of each ribbon transducer allows a wide, uniform frequency range with no substantial peaks or dips, and the two 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. The SF-24's extension cable comes with a Y adapter that splits into separate 3-pin male XLR connectors labeled "Upper" and "Lower" for the upper and lower capsules of the microphone (when held vertically).

Royer's Active Series ribbon mics (SF-24 and R-122) are as sensitive as phantom powered condenser microphones, allowing you to use almost any mic preamplifier or board pre (even those of nominal characteristics). Conventional ribbon microphones average 15 to 20 dB lower sensitivity than condenser mics, necessitating the use of high-quality, high-gain microphone preamplifiers for recording softer sound sources like acoustic instruments, vocals and room ambiance. The SF-24 contains two fully balanced, discrete head amplifier systems utilizing ultra-low noise FET's, each delivering a sensitivity of -38 dB. This lets you mate an SF-24 to any preamplifier with average gain characteristics. Even with quiet sound sources, you'll have enough gain to drive any recording medium.

The electronics in the SF-24 provide a perfect load to the ribbon elements at all times, allowing the microphone to deliver 100% of its full sonic potential regardless of the input characteristics of the following mic-pre. Due to its low-impedance output, SF-24's can also be used on extremely long cable runs with minimal signal loss. A good impedance match is critical to ribbon microphones. Impedance mis-matching loads a ribbon improperly, resulting in loss of low end, diminished body, lowered sensitivity and an overall compromised performance. With our Active Series ribbon mics, the ribbon element lives in a perfect world. It sees an optimum impedance match at all times regardless of the following equipment, so its performance will never be compromised by the effects of improper loading. In addition, the ribbon element cannot be damaged by phantom power, electrical glitches or miswired cables.

Applications

  • Drums and Percussion Instruments
  • Brass and Woodwinds
  • Acoustic Piano
  • String Sections, Solo Strings, Harp
  • Orchestra, Choirs, Vocal Groups
  • Acoustic & Electric Guitars

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

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)

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Product Documents

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