The latest in a lineage of successful microphone designs by David Royer, the MA-100's cathode follower design allows use on high SPL instruments such as drums and guitar amplifiers, as well as the more common applications of a small diaphragm, vacuum tube condenser microphone, such as acoustic instruments, cymbals, stereo pairs and pianos.

Featuring hand selected 3 micron capsules, high quality Jensen audio transformers and military-grade JAN 5840 vacuum tubes, the MA-100 performs at a level reminiscent of some of the best loved classic small diaphragm tube condenser microphones. The MA-100 power supply can be set for either 115v or 230v via an external switch. Each MA-100 microphone, power supply and cable set is burned in for 24 hours, carefully tested and evaluated, then packaged in its protective case.

Small Diaphragm Big Sound!
Why choose a small diaphragm microphone Because small diaphragm microphones offer some distinct advantages over their larger brethren:

More consistent polar pattern

Better transient response

Ease of placement

Why choose an MA-100

Extended low-frequency response

High SPL handling capability try putting your large-diaphragm mic on a snare drum!

Interchangeable cardioid and omnidirectional capsules

Hand-selected 3-micron capsule

Jensen audio transformer

Military grade JAN 5840 vacuum tube

External switchable power supply voltage

Ultra clean signal path

High SPL handling capability

Capsules: Interchangeable Cardioid and Omnidirectional

Diaphragm: .8" (20.5 mm) diameter

Diaphragm thickness: 3-micron

Frequency Response: 20 Hz - 20 kHz +/- 3 dB

Sensitivity: -39 dB re.1V/pa +/- 1.5 dB

Maximum SPL: 130 dB

Distortion: head amp only, not to exceed .4% @ 140 dB SPL

Self Noise: 14 dB nominal, not to exceed 16 dB (A weighted)

Impedance: 450 ohms, transformer balanced (Jensen)

Vacuum Tube: NOS JAN 5840 pentode wired as triode,

Power Requirements: 100-120 VAC; 220-240 VAC, 50 or 60 Hz.

Power consumption approx. 10 watts