Royer Labs SF-24V Vacuum Tube Stereo Ribbon Mic
The Royer Labs 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.
- Vacuum tube circuitry provides high output and impedance matching
- True stereophonic (Blumlein and M-S) recording from one coincident microphone and equal sensitivity from front or back of elements
- High SPL capabilities and no distortion up to maximum SPL rating
- Extremely low residual noise and very low magnetic leakage
- Ribbon elements are not affected by heat or humidity
- Consistent frequency response regardless of distance and absence of high frequency phase distortion
- High efficiency, matching toroidal transformers
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The SF-24V 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.
The SF-24V comes in a protective carrying case containing:
SF-24V in a beautiful custom made jewellers box
Dedicated power supply
RSM-24 shock mount
20-foot stereo cable
Owners manual and documentation
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).
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 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 SF-24V.'
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 aluminium 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 [email protected] 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 inches)
Weight: 583 grams (20.5 oz)