The 013 FET-M Black is a factory-matched pair of solid-state small-diaphragm condenser microphones in a matte black finish. Both units are built on the same S13 capsule with a 25mm gold-sputtered diaphragm found in the tube-powered 013 TUBE, but run a faster, transistor-based signal path paired with a proprietary toroidal transformer wound in-house at the Soyuz factory.
Consistent stereo imaging without manual pair-matching
Building a stereo pair from two individually purchased mics usually means comparing frequency-response charts to avoid the image pulling left or right on overheads or a string section. The 013 FET-M removes that step - both capsules are tested and matched at the factory, so an engineer sets the pair up on piano, acoustic guitar, or a drum kit and gets a symmetrical image without trimming levels between channels at the mix stage.
Fast transient attack without a sterile, clinical edge
Many transistor-based small-diaphragm mics buy transient speed at the cost of warmth - detail starts to sound sterile, especially on piano or drum cymbals. The S13 capsule in the 013 FET-M pairs a fast transistor response with the density the proprietary toroidal transformer adds, so the recording keeps attack precision without losing musical character in the midrange. The included -10dB pad lets the pair sit closer to louder sources without risking overload.
KEY FEATURES
- Factory-matched pair of small-diaphragm FET condenser microphones
- S13 capsule, 25mm gold-sputtered diaphragm
- Cardioid pattern, with swappable hypercardioid and omnidirectional capsules
- Proprietary toroidal transformer
- Included -10dB pad (x2)
- Matte black finish
- Compact, lightweight body for precise placement
- Includes wooden case and microphone clips
TECHNICAL SPECIFICATIONS
- Type: small-diaphragm FET condenser microphone (factory-matched pair)
- Capsule: S13, 25mm gold-sputtered diaphragm
- Polar pattern: cardioid (optional hypercardioid, omnidirectional)
- Frequency range: 20Hz - 20kHz
- Sensitivity: 20mV/Pa
- Impedance: 150 Ohms
- Pad: -10dB, inline, x2 included
- Transformer: toroidal, proprietary Soyuz design
- Finish: matte black
- Included accessories: wooden case, microphone clips, -10dB pads