Austrian Audio OC818 Dual Set Plus Large-Diaphragm Condenser Microphone Pair

The Austrian Audio OC818 Dual Set Plus is a professional-grade stereo pair of large-diaphragm condenser microphones engineered for high-precision studio applications. These microphones utilize the proprietary CKR12 ceramic capsule, which provides a consistent and natural sound profile across a wide frequency range. With advanced output technology and switchable polar patterns, this set offers the flexibility required for demanding recording environments where accuracy and detail are paramount.

Advantages

The primary advantage of the OC818 Dual Set Plus lies in its exceptional versatility and sonic transparency. The inclusion of multiple switchable polar patterns allows engineers to adapt to various acoustic environments and source materials without changing microphones. Furthermore, the microphones feature a unique microprocessor-controlled bias voltage system, ensuring stable performance and allowing for remote control of polar patterns via the optional OCR8 Bluetooth dongle. The matched pair configuration ensures phase coherence and balanced stereo imaging, making it an ideal choice for critical stereo recording techniques.

Suitable for

• Recording acoustic instruments such as guitars, pianos, and strings
• Capturing professional vocal performances
• Orchestral and ensemble recording
• Stereo miking techniques including X/Y, ORTF, and Mid-Side

When it may not be suitable

This microphone set may not be the optimal choice for casual users or those working in untreated acoustic environments, as the high sensitivity of the large-diaphragm capsules will capture significant room noise. Additionally, it is not intended for live stage use where extreme durability against physical impact or high-SPL close-miking of loud percussion might be required.

Key specifications

• Transducer type: Large-diaphragm condenser
• Polar patterns: Omnidirectional, cardioid, supercardioid, figure-eight, and programmable
• Frequency range: 20 Hz to 20 kHz
• Sensitivity: 13 mV/Pa
• Maximum SPL: 148 dB
• Output impedance: 275 ohms

How to use

To use the Austrian Audio OC818 microphones, connect each unit to a high-quality microphone preamplifier using balanced XLR cables. Ensure that 48V phantom power is engaged on your interface or preamp to power the internal circuitry. Use the switches on the side of the microphone body to select the desired polar pattern. For stereo recording, position the microphones according to your chosen technique, ensuring they are equidistant from the sound source to maintain phase alignment.

What to consider before purchase

• Ensure your audio interface has two available XLR inputs with phantom power
• Consider the acoustic treatment of your recording space
• Verify the compatibility of your microphone stands for stereo bar mounting

Usage recommendations

For the best results, utilize the included stereo bar to maintain precise capsule spacing during stereo recording. Always store the microphones in the provided protective case when not in use to prevent dust accumulation on the diaphragms.