Product Details

Multi-pattern Large Diaphragm Tube Condenser mic with PSU, shock mount and 16' cable

Large-diaphragm Tube Condenser Mic w/ Multiple Polar Patterns (Continuously Variable from Omni to Figure-8)

Product Details
The MA-300 is a multi-pattern large diaphragm, vacuum tube condenser microphone. Based upon the widely accepted MA-200 designed by David Royer, the MA-300 adds a continuously variable pickup pattern selector, 15dB pad and a switchable bass roll-off. The MA-300 gives warm, full-bodied reproductions of vocals and instruments, with none of the shrillness and high frequency distortion artifacts that are often encountered with modern condenser microphones.
Utilizing hand-selected, double diaphragm 3-micron capsules, high-quality Jensen audio transformers and military-grade JAN 5840 vacuum tubes, the MA-300 performs at a level reminiscent of some of the best loved classic condenser microphones. The MA-300 power supply can be set for 115V and 230V, 50 or 60 Hz, through an internal switch (100V is also available). Each MA-300 microphone, power supply and cable set is burned in for 24 hours, carefully tested and evaluated, then packaged in its protective case-within-a-case.

  • Remotely controlled, continuously variable polar pattern selector
  • Switchable 15dB pad
  • Switchable Bass Roll-off
  • Hand-selected 3-micron double diaphragm capsule
  • Jensen audio transformer
  • Military grade JAN 5840 vacuum tube
  • Internal switchable power supply voltage
  • Ultra clean signal path
  • Recommended Applications 
Recommended Applications :
Use anywhere you would use a large diaphragm tube microphone.
  • Vocals
  • Voice Over and Broadcast
  • Acoustic Instruments
  • Piano
  • Drum Overheads, Drum Rooms
  • Orchestral Recording
  • Choral Recording

Technical Specification
Pad 15 dB
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 -37dB re 1V/pa
Diaphragm 1-inch diameter, gold sputtered
Diaphragm thickness 3-microns
Maximum SPL 120 dB with pad off, 135 dB with pad on.
Distortion < 1% @ 117 dB SPL , < 3% @ 125 dB SPL with pad off, < 1% @ 132 dB SPL, < 3% @ 140 dB SPL with pad on
Self Noise 14db nominal, not to exceed 16db (A Weighted)
Microphone 7 5/8″ X 2″, 1 lb.
TRANSDUCER TYPE Externally polarized, pressure gradient capacitor – double diaphragm.
BASS CUT 6 dB per octave below 100 hertz.
POLAR RESPONSE Continuously variable from omnidirectional to figure-eight.
and cables 13 lbs.