2.601,00  1.995,87  + 21% IVA

Cardioid Tube Condenser Microphone

  • high sensitivity
  • excellent signal-to-noise ratio
  • modern M930 capsule
  • large diameter gold-plated plastic membrane
  • tube preamplifier with EF86

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 tube microphones that are preferred by vocalists and soloists. The M 990 vacuum tube condenser microphone is well-suited for difficult radio play productions as well as a supporting microphone for orchestra recordings.

The new pressure gradient transducer of the M 990 uses a large diameter gold-plated plastic diaphragm. The vacuum tube preamplifier 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 vacuum tube condenser 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.

The microphone is available in a dark bronze finish.


Descripción del Producto


Tube-Condenser Microphone
M 990
Polar pattern
Acoustical operating principle
Pressure gradient transducer
Frequency range
40 … 18000 Hz
Sensitivity at 1 kHz
28 mV / Pa
Rated impedance
200 Ω
Equivalent loudness level
due to inherent noise
CCIR 468-4 (qps)
24 dB
DIN EN 60651
13 dB – A
Signal-to-noise ratio
(re 1 Pa at 1 kHz)
70 dB
81 dB
Max. SPL for THD ≤ 0,5 %
119 dB
Total dynamic range of the microphone amplifier
106 dB
DC power supply
120 V –
Anode current
1 mA –
Heater voltage
5,8 V –
Heater current
200 mA –
EF 86
Output connector
7- pin Tuchel C 70 / A
400 g
Dimensions (L x Ø )
185 x 43 mm

Frequency Responses


Polar Patterns

pol_1_k pol_2_k pol_3_k


Microphone M 990 in Suitcase   L x B x H   450 x 350 x 160 mm
Power supply N 920.1
Connection cable C 92.1
Elastic suspension EA 92
dark bronze
Order-No. 211179