Austrian Audio OC818 — Demo Pair, Lightly Used | Full Bundle incl. Peli Case, OCR8 Bluetooth, Pop Filter

Up for sale is a pair of Austrian Audio OC818 large-diaphragm multi-pattern condenser microphones, sold as a set. These were demo units used for evaluation and comparison purposes — never put to work in an intensive live or studio setting. Both mics are in excellent condition and perform flawlessly.

This listing includes a rare and complete bundle that would cost significantly more to assemble individually.

What's included:

• 2× Austrian Audio OC818 (demo condition, excellent)
• Peli case (both mics stored and transported safely)
• 2× OC818 shockmounts
• 1× OCR8 Bluetooth adapter (normally sold separately — allows wireless polar pattern control via the free PolarPilot app)
• 1× LEMO to XLR cable (OCC8) for dual-capsule / dual-output recording
• 1× Austrian Audio pop filter (bonus accessory)

Why the OC818 is special

The OC818 features a handmade CKR12 ceramic capsule, manufactured and tested to the highest specifications at Austrian Audio's Vienna facility. It reimagines the celebrated CK12 capsule to deliver exceptional detail and nuance while also handling extremely high SPL. Austrian Audio

The CK12 is one of the most significant capsule designs in history — originally found in the AKG C12, all iterations of the C414, and the Telefunken ELA M 251. The Austrian Audio CKR12 is more an evolution of the AKG CK12 than a clone or a simple variation. Designed by a team of former AKG engineers, this is genuine Vienna DNA — not an imitation. Recording Magazine

A 5-position switch covers figure-8, hypercardioid, cardioid, omnidirectional, and wide cardioid. Each diaphragm is routed to a separate output connector for dual-channel recording, which allows you to design custom polar pattern responses across five frequency bands via the open-source PolarDesigner plug-in, or achieve a tweakable stereo image via the StereoCreator plug-in. B&H Photo Video

The included OCR8 Bluetooth adapter takes this further: once paired with your mobile device via the PolarPilot app, you can control polar patterns, pads, and high-pass filters in real time from your control room. Amazon

A two-stage pad (-10 or -20 dB) and high-pass filter with three positions (40, 80, or 160 Hz) let you tailor the mic to any source or room. B&H Photo Video

As a pair

Austrian Audio microphones are precision matched to within a stringent 1 dB tolerance, which means with two OC818s you can confidently implement stereo techniques such as Spaced Pair (A/B), X-Y, Blumlein, ORTF, and Mid-Side (M/S). And with the LEMO-to-XLR dual output cable, a single OC818 is already a stereo microphone in and of itself — with two, your options expand exponentially. SweetwaterSweetwater

The OC818 is equally at home on vocals, acoustic guitar, piano, drum overheads, strings, brass, percussion, and room capture. Amazon

Condition: Demo units — both in excellent working and cosmetic condition. Stored in Peli case throughout. No heavy use, no damage.

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