Mojave MA-300 Multi Pattern Vacuum Tube Condenser Microphone

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.

 

Features:

 

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:

 

Use anywhere you would use an expensive, large diaphragm tube microphone.

 

Vocals

Voice Over and Broadcast

Acoustic Instruments

Piano

Drum Overheads, Drum Rooms

Orchestral Recording

Choral Recording

TECHNICAL DATA

 

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.

 

DIMENSIONS AND WEIGHT: 

Carrying case with microphone, power supply, shock mount 

and cables: 13 lbs.

Microphone: 7 5/8" X 2", 1 lb.