Royer Labs SF-2

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.

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

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