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Royer SF-24V Vacuum Tube Stereo Ribbon Mic

Royer Labs SF-24V Vacuum Tube Stereo Ribbon Mic

The jewel in Royer’s crown and the favourite ensemble/orchestral mic of recordists such as multi-multi award winning classical recordist, Tony Faulkner. The Royer Labs SF24V Vacuum Tube Stereo Ribbon Mic allows the listener to sit in the middle of an orchestra or band by bringing the sound effortless to life. The Royer SF-24 is definitely worth trying and definitely worth buying.

Royer SF-24V Vacuum Tube Stereo Ribbon Mic

The Microphone

The Royer SF-24V is the world's first vacuum tube stereo ribbon microphone, delivering the ultimate in single-point stereo miking for your clients who demand the very best.

The Royer Labs SF-24V comes in a protective carrying case containing:

SF-24V in a beautiful custom made jewelers box
Dedicated power supply
RSM-24 shock mount
20' stereo cable
Owners manual and documentation.

The Sound
The Royer SF-24V vacuum tube stereo ribbon microphone is distinguished by extraordinary transparency, depth and midrange reach. It delivers gorgeous recordings of virtually all acoustic instruments.  The Blumlein X-Y stereo image is wide and pinpoint accurate, and the mic can be rotated 45 degrees for M-S recording as well.

A prominent Los Angeles engineer said "The best way to describe the sound with the tube circuit involved is you start with an SF-24, add amazing midrange reach and transparency, sprinkle fairy dust all over it, and you get an Royer SF-24V."  It's not the most technical explanation, but it does the job!

Grammy winning scoring engineer Alan Meyerson (Angels & Demons, The Dark Knight, Pirates of the Caribbean) says "The latest addition to Royer's tube ribbons, the SF-24V stereo, is astonishing. Unbelievable sound - superb imaging! Royer has hit another home run with the Royer SF-24V."

Royer SF-24V Recommended applications:

  • Orchestra
  • Small to Large Ensembles
  • Choir
  • Woodwind Sections
  • String Sections
  • Brass Sections
  • Drum Overhead
  • Drum Room
  • Piano
  • Percussion
  • Acoustic Instruments

Warranty: Lifetime to the original owner. The tube warranty is 10 years. The ribbon elements are warranted for one year (first re-ribbon free within one year).

Royer SF-24V Finishes: Burnished Satin Nickel (standard), Matte Black Chrome (optional, please contact us for details).

Royer SF-24V Technical Specs

  • Acoustic Operating Principle: Electrodynamic pressure gradient with vacuum tube electronics.
  • Vacuum Tube: JAN mil-spec 5840W pentode wired in triode configuration
  • Polar Pattern: Crossed figure-8's
  • Generating Element: 1.8-micron aluminum ribbon
  • Frequency Response: 30-15,000 Hz +/- 3dB
  • Sensitivity: -38 dB (re. 1v/pa +/-1dB)
  • Self-Noise: < 18 dB
  • Output Impedance: 450 Ohms @ 1K
  • Recommended Load Impedance: 1500 Ohms or greater
  • Maximum SPL: >130dB
  • Microphone Output Connector: Male XLR 7 pin (stereo*)
  • Power Supply Output Connectors: Two Male XLR-3 pin
  • Power Requirements: Plate supply: 135 VDC @2ma, Filament supply: 6 VDC@ 150ma from dedicated power supply.
  • Supply Current: 4 mA per channel
  • Microphone Dimensions: 270mm X 39mm (base) X 25mm (top) (10 5/8"X 1.5" X 1")
    Weight: 583 grams (20.5 oz)
  • Finish: Dull Satin Nickel, Optical Black finish optional
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