Austrian Audio OC818 Large-Diaphragm Condenser Microphone

Capture clean, pure, hyper-realistic audio with 4 pickup patterns, plus custom patterns you create yourself, and dual membranes with independent XLR outputs!

Engineered and manufactured in Austria, the OC818 is Austrian Audio's premier, professional, large diaphragm microphone. Its high sensitivity, low self-noise and ability to handle everything from a whisper to extreme SPLs make it an advanced microphone for studio, broadcast and live applications. Dual outputs let you record each diaphragm separately.

As the unique ceramic capsule design is so consistent, any OC818 is match-paired with any other OC818, and when in cardioid mode, it can also be match-paired with any OC18, its affordable, smaller sibling.

Dual Membrane Mode and PolarDesigner

The second output on the rear side of the microphone can deliver the signal of the back membrane, while you get the front capsule from the regular XLR plug. Just plug in the OCC8 mini XLR cable supplied with your OC818, and set the polar pattern switch to the position showing the 2 cardioids. The OC818 will now work in dual mode, with both capsule membranes being transmitted independently. In dual mode, you may record the two signals to two tracks and use Austrian Audio's PolarDesigner plugin later to modify the polar pattern in post-production. PolarDesigner even lets you choose the polar pattern for up to five different frequency bands.

The OC818 Mic System: Add the optional OCR8 Bluetooth dongle

Austrian Audio offers the optional OCR8 Remote Control Module for wireless control of your OC818 via smart device. This dongle plugs on to your mic, adding Bluetooth connectivity via read more phantom power. Download Austrian Audio's PolarPilot app for iOS or Android to control polar patterns, pads, and high pass-filters in real time -- an easy way to shoot out settings from your listening position! Discover and create 255 discrete polar patterns of your own, and store a custom setting on board the OC818 for use without the PolarPilot app. There's even a 60-second clipping monitor/logger for your OC818 -- useful when determining a pad setting for live situations. The OC818 is always pure analogue: only the analogue bias voltages are being governed remotely. Switching also is always analogue. There's no digital in either the audio or bias paths -- it's everything you want, with none of what you don't. Revolutionize your workflow with wireless control from the comfort of your chair.

Adrian Hall on using the Austrian Audio OC18 and OC818 microphones for a string ensemble recording:

Add the optional OCR8 dongle to your OC818 to unlock powerful wireless control features:

Making Passion Heard

Austrian Audio bring passion to everything they do, and nobody brings more than their engineering team. Every CKR12 ceramic capsule is handmade in-house at their facility in Vienna, where Austrian Audio is developing the next generation of transducer and microphone builders to serve their expanding customer base.


- Handmade CKR12 ceramic capsul -- Made to the same critical dimensions as the classic CK12 capsules
- Multiple polar patterns -- Cardioid, omnidirectional & custom programmable
- Microprocessor control of polarisation voltages -- allows remote controlled polar pattern settings
- Two different analogue high-pass filters with three settings -- 40 Hz, 80 Hz, 160 Hz
- Two different types of analogue pads: -10 dB, -20 dB
- Dual outputs -- for recording each diaphragm separately
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-Directional characteristics: Multi
-Impedance: 275 O (symmetrical)
-Polar pattern: cardioid, omnidirectional, figure-8, hypercardioid & custom programmable
-Load impedance: > 1 kO
-Frequency range: 20 Hz - 20 kHz
-Supply voltage: 48 V (< 4mA, typical 2.1mA)
-Sensitivity (all directions): 13mV/Pa
-Main Connector: XLR 3 pin
-Equivalent noise level: 9 dB SPL (A)
-Or remote: Mini XLR 5 pin Connector for back membrane
-Max SPL: 148 dB SPL (158 dB SPL)
-Dimensions: 157 x 63 x 35 mm
-Switchable pad: -10 dB, -20 dB
-Weight: 360g
-Analog Low Cut filter: 40 Hz (2nd order), 80 Hz (2nd order), 160 Hz (1st order down to 80Hz, 2nd order below)
Dimensions and Weight in Packaging
Shipping Weight: 5.75 lbs
Shipping Dimensions: 15 x 13 x 6 in
Manufacturer Part Number (MPN): 17002F10250
Shipping Weight: 5.5 lbs
Shipping Dimensions: 15 x 13 x 5 in
Manufacturer Part Number (MPN): 17002F10200
Silver, Pair
Shipping Weight: 11.25 lbs
Shipping Dimensions: 24 x 16 x 7 in
Manufacturer Part Number (MPN): 17002F11000

For support or warranty questions, please contact the manufacturer:
Phone: +43-676-847-490-302


  • 18 x  
  • 12 x  
    $104.08 with zZounds
  • 8 x  
    $156.13 with zZounds
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