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The SF-12 utilizes two 1.8-micron ribbons, each weighing approximately 1/3 milligram and producing superb transient response. The two ribbon transducers are magnet/pole piece structures that produce a wide, uniform frequency response with no substantial peaks or dips. The case is ingot iron and forms part of the magnetic return circuit, an effective system with low leakage flux which accounts for the relatively high sensitivity in a trim package. The SF-12’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).
The SF-12 is uncanny for creating “you-are-there” stereo recordings that capture not only the instrument being recorded, but, depending on positioning, the acoustic environment as well. If you pay careful attention to the sound of an instrument or ensemble in the recording environment, you will likely find a place where it sounds best to you. Position the SF-12 in that place and you will capture that sound.
A beautiful example can be found in the Orchestra section of the Royer Demonstration CD. An engineer used one well-positioned SF-12 to create a stunning recording of the Ukrainian Radio Television Orchestra. (Initially, the conductor was not happy with the engineer’s desire to record with one microphone, but after hearing the results, the engineer has been invited back to record the orchestra a number of times, with the same one microphone, his SF-12.)
The SF-12 is an excellent choice for drum overheads, where its stereo imaging and realism help to create powerful, dynamic drum tracks. In a jazz setting, recording the kit flat provides extremely natural sounding cymbals, tom-toms and snares. In rock and pop recordings where you’d like to capture the meat of the kit but with more air on the cymbals to help them cut more aggressively, simply open the top end up with EQ. Ribbons take EQ extremely well because they generate virtually no self distortion. When you boost a frequency, even by many dB, you’ll bring up only the musical response you’re looking for without unpleasant distortion artifacts joining the party.
Recording in Mono
Phase compatibility between the two sides of the SF-12 is excellent, allowing you to combine the two channels for mono recording without creating phase artifacts. This is particularly useful when capturing a wide sound field in mono; for instance, a singer who tends to move off the “sweet spot” of a mono microphone. Either side of the SF-12 can also be used individually as a mono microphone.
- True stereophonic (Blumlein and M-S) recording from one microphone.
- High SPL capabilities.
- No internal active electronics to overload or produce 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 or back of elements.
- Consistent frequency response regardless of distance.
- High efficiency, matching toroidal transformers.
- Very low magnetic leakage.
- Acoustic Operating Principle: Electrodynamic pressure gradient
- Polar Pattern: Symmetrical figure-8
- Generating Element: 1.8-micron aluminum ribbon
- Frequency Response: 30-15,000 Hz +/- 3dB
- Sensitivity: > -52 dBv Re. 1v/pa
- Output Impedance: 300 Ohms @ 1K (nominal)
- Rated Load Impedance: >1500 Ohms @ 300 nominal impedance
- Maximum SPL: >130dB
- Output Connector: Male XLR 5 pin (stereo*)
- Dimensions: 206 mm L X 25 mm W (8" L X 1" W)
- Weight: 369 Grams (13 Oz)
- Finish: Matte Black Chrome, Dull Satin Nickel (optional)
- Drum Overheads
- Percussion Instruments
- Brass and Woodwinds
- Horn Sections
- Acoustic Piano
- Solo Strings
- String Sections
- Acoustic & Electric Guitars
- Background Vocals
- Stereo to Mono