Royer SF-2 Active Ribbon Microphone Stereo Matched Pair Sequential Serial Numbers Upgrades
Royer SF-2 Active Ribbon Microphone Front
Royer SF-2 Active Ribbon Microphone Stereo Matched Pair Sequential Serial Numbers
Royer SF-2 Active Ribbon Microphone Bottom
Royer SF-2 Active Ribbon Microphone Top
Royer SF-2 Active Ribbon Microphone RSM-SS251 Sling-Shock
Royer SF-2 Active Ribbon Microphone Upgraded Custom Cocobolo Wood Case
Royer SF-2 Stereo Pair + Upgrades
Royer SF-2 Active Ribbon Microphone Stereo Matched Pair Sequential Serial Numbers

Royer SF-2 Stereo Pair + Upgrades

Regular price $5,888 now $4,700

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Royer SF-2 Active Ribbon Stereo Matched - Sequential Serial numbers!
Like new condition, purchased for professional studio but never used! Includes two Royer RSM-SS251 Sling-shock, upgrade Cocobolo wood mic cases and upgraded matched ribbons!

Each SF-2 retails for $2295 new ($4590 for the pair)
Each RSM-SS251 retails for $349 new ($698 for the pair)
Plus includes very nice upgraded Cocobolo wood cases ($300 each extra, $600 for the pair)
In addition, it has special ordered identically matches ribbons inside! This was an additional $2000 upgrade. The original owner was meticulous about having every item perfect in his studio and he paid extra to have these perfectly matched down to the micron!

Altogether this would cost you $5888 new, not counting the additional ribbon matching. Save a bunch here for this one of a kind stereo matched set!
The SF-2 ribbon microphone is a phantom powered version of our original SF-1 ribbon microphone. Designed primarily for classical applications and acoustic instruments, the SF-2 combines high-quality audio performance with our exclusive active electronics for ribbon microphones. The SF-2’s output of -38 dB puts its sensitivity on par with that of phantom powered condenser microphones, allowing it to be used with a wide variety of mic pre’s regardless of gain characteristics. The unique electronics and custom designed FET’s used in the SF-2 deliver ultra-quiet operation, with self-noise of lower than 18 dB.
The SF-2’s magnet/pole piece transducer structure gives a wide, uniform frequency response with no substantial peaks or dips, and the 1.8-micron ribbon element delivers superb transient response. Frequency response is excellent regardless of the angle of sound striking the ribbon and off-axis coloration is negligible.
Gain
Our Active Series ribbon mics are as sensitive as phantom powered condenser microphones, allowing you to use virtually any mic preamplifier or board pre. Conventional ribbon microphones are 15 to 30 dB less sensitive than condenser mics, necessitating the use of high-quality, high-gain microphone preamplifiers when recording quieter sound sources like acoustic instruments, vocals, room ambiance, etc. The SF-2 contains a fully balanced, discrete head amplifier system which utilizes a specially wound toroidal transformer and ultra-low noise FET’s to deliver a sensitivity of -38 dB. Even with extremely quiet sound sources, you’ll have enough level to drive any recording medium.

The SF-2’s electronics create no additional self-noise. All of the SF-2’s higher output comes from its large, specially wound toroidal transformer which provides an additional 14 dB of ‘free gain.’ The phantom powered system operates at less than unity, adding no noise of its own.

Impedance Matching
The electronics in the SF-2 provide a perfect load to the ribbon element 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-2’s can be used on extremely long cable runs with minimal signal loss.
A proper impedance match is critical to the performance of ribbon microphones. Impedance mismatching loads a ribbon element improperly, resulting in loss of low end and body, lower sensitivity, and an overall diminished performance. With our Active Series ribbon mics, the ribbon element sees a perfect impedance at all times regardless of the preamp you choose, so its performance is never compromised by the effects of improper loading. In addition, the ribbon element cannot be damaged by phantom power, electrical glitches or miswired cables.

Features
- Phantom powered circuitry provides high output and impedance matching
- High SPL capabilities (130 dB @ 70 Hz)
- No 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 and back of microphone
- Consistent frequency response regardless of distance
- High efficiency toroidal transformer and gold plated output connector
- Very low magnetic leakage
- Matte Black finish reduces reflected light for live and on-camera use

Applications
- Choir
- Woodwinds, flute and other reed instruments
- Violin, cello and other stringed instruments
- Brass, string and woodwind sections
- Piano
- Harp
- Orchestra
- Acoustic Guitar, Mandolin, Banjo
- Percussion Instruments
- Vocals
- Drum Overheads
- Ambiance
Technical Data
- Electrodynamic pressure gradient with active
electronics.
- Polar Pattern: Figure-8
- Generating Element: 1.8-micron aluminum ribbon
- Frequency Range: 30 HZ - 15,000 HZ +/-2db
- Sensitivity: -38 dBv Ref 1 Volt per Pascal
- Output Impedance: 200 Ohms @ 1khz
- Rated Load Impedance: > 1500 Ohms
- Maximum SPL: > 130 dB SPL
- Output Connector: Male XLR 3 pin (Pin 2 Hot)
- Power Requirements: 48-Volt Phantom
- Supply Current: 4 mA
- High grade neodymium magnet assembly
- Stainless steel internal baffle and dampener
- Weight: 448 grams (15.8 oz.)
 - Dimensions: 142 mm x 39mm (base) x 25mm (top)
- Finish: Matte black

Royer SF-2 Manual
Royer SF-2 Tech Sheet
Royer SF-2 Active Ribbon Microphone Stereo Matched Pair Sequential Serial Numbers
Royer SF-2 Active Ribbon Microphone Bottom
Royer SF-2 Active Ribbon Microphone Top
Royer SF-2 Active Ribbon Microphone RSM-SS251 Sling-Shock
Royer SF-2 Active Ribbon Microphone Upgraded Custom Cocobolo Wood Case
Royer SF-2 Stereo Pair + Upgrades