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Mojave MA-301 FET:

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The MA-301 FET is a multi-pattern large diaphragm, solid-state condenser microphone. Based upon the popular MA-201 FET designed by David Royer, the MA-301fet adds a 3-position pickup pattern selector, a 15dB pad and a switchable bass roll-off.

Utilizing a 3-micron gold-sputtered capsule, high-quality Jensen audio transformer, military-grade FET and custom designed low-noise resistors, the MA-301fet performs at a level reminiscent of some of the best loved classic condenser microphones. Each MA-301fet microphone is carefully tested and evaluated, then packaged in its protective case with a professional grade shockmount.


  • Multi-pattern: Cardioid, Omnidiectional, Figure-eight (Bi-directional)
  • Switchable 15dB pad
  • Switchable Bass Roll-off
  • Hand-selected 3-micron 1" capsule
  • Jensen audio transformer
  • Military-grade FET
  • Custom designed low-noise resistors
  • Ultra clean signal path

Recommended Applications:

  • Vocals
  • Voice Over and Broadcast
  • High SPL sources, such as Kick Drums and Bass Guitar Amps
  • Electric Guitar
  • Piano
  • Drum Overheads, Drum Rooms

Technical Data

  • Transducer Type:
    Externally polarized, pressure gradient capacitor - double diaphragm
  • Diaphragm:
    1-inch diameter, gold sputtered
  • Disphragm Thickness:
    3 microns
  • Polar Pattern:
    3 patterns; omni, cardioid and figure-8
  • Frequency Response:
    20 Hz to 20 KHZ, +/-3 dB at "flat" setting of bass cut switch. Bass cut switch provides 6 dB per octave attenuation below 100 Hertz in "cut" setting
  • Sensitivity:
    -40.5 dB, re. 1V/pa
  • Maximum SPL:
    120 dB with pad off, 135 dB with pad on
  • Distortion:
    < 1% @ 120 dB SPL
    < 3% @ 134 dB SPL with pad off
    < 1% @ 134 dB SPL
    < 3% @ 148 dB SPL with pad on
  • Self Noise:
    14dB nominal, not to exceed 16dB (A weighted)
  • Pad:
    15 dB
  • Bass Cut:
    6 dB per octave below 100 hertz
  • Impedance:
    550 ohms, transformer balanced (Jensen)
  • Power:
    48VDC phantom power; current 1.2 mA
  • Dimensions & Weight:
    Carrying case with microphone, shock mount: 10" x 9" x 4.5", 4 lbs
    Microphone: 7 5/8" X 2" (194mm x 51mm), 1 lb. (0.45Kg)
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