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Consistent performance

Engineered and manufactured in Austria, its high sensitivity and low self-noise means it can handle everything from a whisper, to extreme SPLs without distortion, making it the perfect choice for studio, live and broadcast applications. The unique ceramic capsule design is so consistent, the OC18 can be match-paired with any other OC18 or paired with any OC818 set in cardioid mode.


Key Features

  • The same handcrafted design as the OC818 Classic cardioid
  • The same handmade CKR12 ceramic capsule Only Single diaphragm
  • Every Austrian Audio OC18 and OC818 is within 1dB of each other, Making any two microphones a stereo pair





Austrian Audio OC18 Studio Set: Popular Cardioid Pattern Precision Microphone


Directional characteristics:

  • Single


  • 275 Ω (symmetrical)

Polar pattern:

  • Cardioid

Load impedance:

  • > 1 kΩ

Frequency range:

  • 20 Hz - 20 kHz

Supply voltage:

  • 48 V (< 2.2mA)

Sensitivity (all directions):

  • 13mV/Pa

Main Connector:

  • XLR 3 pin

Equivalent noise level:

  • 9 dB SPL (A)

Max SPL:

  • 148 dB SPL (158 dB SPL)


  • 157 x 63 x 35 mm

Switchable pad:

  • -10 dB, -20 dB


  • 335 g

Analog Low Cut filter:

  • 40 Hz (2nd order), 80 Hz (2nd order), 160 Hz (1st order down to 80Hz, 2nd order below)
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