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 the most advanced microphone for studio, broadcast and live applications. 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.
Features
Handmade CKR12 ceramic capsule
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
Technical Specifications
Directional characteristics:
Multi
Impedance:
275 Ω (symmetrical)
Polar pattern:
cardioid, omnidirectional, figure-8, hypercardioid & custom programmable
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
Analog Low Cut filter:
40 Hz (2nd order), 80 Hz (2nd order), 160 Hz (1st order down to 80Hz, 2nd order below)
