The SF-24 stereo ribbon microphone is a phantom powered version of our popular SF-12 stereo ribbon microphone. It combines the SF-12's high quality audio performance, outstanding stereo separation and imaging with our exclusive active electronics system for ribbon microphones. The SF-24's output of -38 dB is a full 14 dB more sensitive than our non-powered SF-12, putting its sensitivity on par with that of phantom powered condenser microphones. The unique electronics and custom designed FET's used in the SF-24 allow for ultra-quiet operation, with self-noise of lower than 18 dB.
Like an SF-12, the SF-24 is actually two matched ribbon microphones placed one above the other in a coincident pair, each aimed 45 degrees from center in the classic Blumlein configuration. The magnet/pole piece structure of each ribbon transducer delivers a wide, uniform frequency response with no substantial peaks or dips, and the 1.8-micron ribbons produce superb transient response. Frequency response is excellent regardless of the angle of sound striking the ribbons and off-axis coloration is negligible.
The SF-24'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).
Technical Specifications
Acoustic Operating Principle: Electrodynamic pressure gradient with active electronics
Polar Pattern: Crossed figure-8's
Generating Element: 1.8-micron aluminum ribbon
Frequency Response: 40-15,000 Hz ± 2dB
Sensitivity: -38 dB (re. 1v/pa ±1dB)
Self-Noise: < 18 dB
Output Impedance: 200 Ohms
Rated Load Impedance: 1K-Ohm
Maximum SPL: >130dB
Output Connector: Male XLR 5 pin (stereo
)
Power Requirements: 48-Volt Phantom Only
Supply Current: 4 mA per channel
Dimensions: 270mm X 39mm (base) X 25mm (top) (10 5/8" X 1.5" X 1")
Weight: 583 grams (20.5 oz)
Finish: Optical Black, 18K Gold (optional)
Studio Economik UA Apollo NEWS! We are placing the 1rst order for UA Apollo right now, available end February. Limited quantity available on first shipment. Pre-orders available. Please contact us to get yours!
