The VMA has two selectable circuits in this mic. A toggle switch is being used to select between two different operation modes. The classic VM1 mode (the sound that made Brauner famous) and a stunning vintage sound, created after the best of the best famous old vintage tube microphones.

This is of course not dealing with simple filters. The signal path of the VMA is changed through the position of the switch and the tube as well as the capsule, get biased in a different way.

Specifications

Type: Pressure Gradient Transducer
Equivalent Noise: 8dB A (IEC651)
Signal to Noise: 86dB (1Pa/1kHz)
Sensitivity: 28mV/Pa
Pattern: All, infinitely variable
Frequency Range: 20Hz-22kHz
Type of Amplifier: Ultrawide, Ultralinear, Class A
TUbe Type: EF 86, EF 806, EF 732 or Brauner CMVT1
Maximum SPL: 142dB SPL @ 0.3% THD
Supply: 115V or 230V
Accessories: Suspension, aluminum case, power supply, windscreen, cable, manual