Valve capacitor microphone with a cardioid polar-pattern.

  • High sensitivity
  • Modern M930 capsule
  • EF86 valve

Renowned for it’s high sensitivity, the M 990 possesses a superb dynamic range.  The combination of the modern, large diaphragm capsule technology with the classic full-bodied sound of valve microphones, makes it much sought after by vocalists and soloists.  The large diameter pressure-gradient transducer in the M 990 has a sputtered gold plastic diaphragm, and the valve pre-amplifier uses a pentode configured as a triode, selected for its sonic characteristics.

The M 990 is renowned for its high sensitivity and excellent signal-to-noise ratio.  It combines modern large diaphragm capsule technology with the typical full-bodied sound of valve (vacuum tube) microphones that are preferred by vocalists and soloists.  The M 990 valve capacitor microphone is well-suited for difficult radio play productions as well as a supporting microphone for orchestral recordings.

The new pressure gradient transducer of the M 990 uses a large diameter gold-plated plastic diaphragm.  The valve (vacuum tube) pre-amplifier is equipped with a pentode working as a triode selected for its sonic characteristics.

The N 920.1 power supply provides the operating voltage for the capacitor microphone. It can be powered from AC mains with a primary voltage of 115 or 230 volts / 50 or 60 Hz.

For cable lengths over 50 meters it is recommended to have your service provider set the heater voltage of the power supply to 5.8 volts.   The N 920.1 is equipped with an on/off-switch, a 7-pin Tuchel connector that powers the microphone and a 3-pin XLR connector with integrated line voltage selector.

The M 990 is packed in a wooden case and comes with power supply , connection cable C 92.1 and elastic suspension EA 92.

Finish: dark bronze.

A Brief History of Microtech Gefell

M 990 Data Sheet

Supplied complete with:
N920.1 Power supply
C92.1 Connection cable
EA92 Elastic suspension

Optional accessories:
Aluminium flight case
Windscreen – W92
Pop screen – PO70
Microphone holder – MH80
Cable with swivel mount – C92.1s

Recommended – Håkan P110 Pop Killer – see HERE