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.

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

Transducer type: Externally polarized, pressure gradient capacitor - double diaphragm.

Diaphragm: 1-inch diameter, gold sputtered

Diaphragm thickness: 3-microns

Polar response: Continuously variable from omnidirectional to figure-eight.

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

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)

Pad: 15 dB

Bass cut: 6 dB per octave below 100 hertz.