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Austrian Audio OC18 Large-diaphragm Condenser Microphone

Large-diaphragm Condenser Microphone with Cardioid Polar Pattern, -10dB and -20dB Pads, and 3-position Switchable Highpass Filter
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Austrian Audio OC18 Large-diaphragm Condenser Microphone
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Versatile Cardioid Condenser in the Viennese Tradition

Sweetwater is thrilled to present to you another valuable tool to help you make better-sounding recordings: the Austrian Audio OC18. Handcrafted in the heart of Vienna, the City of Music, the OC18 is a versatile large-diaphragm condenser microphone with a fixed cardioid polar pattern, -10dB and -20dB pads, and a three-position, switchable highpass filter. You can use the OC18 on any source with excellent results. Austrian Audio microphones are rigorously tested with state-of-the-art measurement systems and are precision matched to within a stringent 1dB tolerance. This means you can confidently use your OC18 along with another OC18 (or the company’s multi-pattern OC818 set to cardioid) in a stereo-pair configuration and assure stunning results.

Outstanding results on any source

Austrian Audio pours into their products everything they have learned in more than 300 years of combined experience. The company’s proprietary CKR12 capsule bears this wisdom, and a superior handmade capsule is the heart of any classic mic. In keeping with a fixed cardioid polar pattern, the OC18 uses the single-diaphragm version of the CKR12 capsule, which — in concert with the microphone’s custom electronic circuitry — delivers excellent results when used for vocals, acoustic guitar, piano, drum overheads, strings, brass, percussion, and room capture. What’s more, the OC18’s robust, native 148dB maximum SPL capability — further increased by the inclusion of selectable -10dB and -20dB pads — also makes it ideal for louder sources such as tom toms and electric guitar cabinets.

Versatile cardioid polar pattern

If you had to choose only one polar pattern for all the mics in your studio, cardioid would be the one. Although we certainly recommend having multi-pattern microphones — such as Austrian Audio’s OC818 — in your mic locker for tricky recording setups and advanced stereo miking techniques, your cardioid mics will be your “go-to” mics for the vast majority of recording and sound-reinforcement tasks. The OC18 uses the same handmade-in-Vienna CKR12 ceramic capsule as the OC818, but with only a single diaphragm, which keeps the cost down. After all, if you don’t need multiple polar patterns, then why pay for them? With the OC18, you’re getting almost exactly the same microphone as the OC818 with identical sonic performance. A great-sounding cardioid condenser mic like the OC18 will enjoy constant use in your studio.

The new Vienna classics

Carrying on the rich legacy of high-end Viennese microphone design into the modern era, Austrian Audio is driven by an engineering team with over 300 years of combined experience. Their motto: “Making Passion Heard.” Their mission: to design and manufacture a new generation of recording tools that embrace cutting-edge technologies and sonic excellence while honoring Vienna’s rich musical heritage. That vision is realized in Austrian Audio’s proprietary, handcrafted CKR12 large-diaphragm capsule, which is used in the company’s excellent OC18 and OC818 condenser microphones. Sweetwater is proud to bring you Austrian Audio’s distinguished lineup of fine microphones and accessories.

Austrian Audio OC18 Large-diaphragm Condenser Microphone Features:

  • Handmade, single-diaphragm CKR12 ceramic capsule
  • Austrian Audio OC18 and OC818 mics are precision matched to within 1dB tolerance for accurate stereo capture
  • Compatible with Austrian Audio OC818 for spaced-pair applications
  • Polar pattern: Cardioid
  • Frequency response: 20Hz–20kHz
  • Sensitivity (all directions): 13mV/Pa
  • Equivalent Noise Level: 9dB SPL (A)
  • Maximum SPL: 148dB (158dB SPL with -10dB pad engaged)
  • Switchable pad: -10dB, -20dB
  • HPF: switchable 40Hz, 80Hz, 160Hz
  • Impedance: 275Ω (symmetrical)
  • Load impedance: >1kΩ
  • Supply voltage: 48V phantom (<2.2mA)
  • Includes spider mount, mic clip, windscreen, and storage case

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Tech Specs

  • Microphone Type: Condenser
  • Polar Pattern: Cardioid
  • Diaphragm Size: Large
  • Frequency Range: 20Hz-20kHz
  • Max SPL: 148dB SPL
  • Output Impedance: 275 ohms
  • Sensitivity: 13mV/Pa
  • Self Noise: 9dB SPL (A weighted)
  • Low Cut Filter: 40Hz, 80Hz, 160Hz
  • Pads: -10dB, -20dB
  • Connector: XLR
  • Color: Black
  • Power Source: 48V phantom power
  • Dimensions: 6.18" x 2.48"
  • Weight: 0.74 lbs.
  • Included Accessories: Carrying Case, Spider Mount, Foam Windshield, Mic Clip
  • Manufacturer Part Number: 18005F10200

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Customer Reviews

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Rated 5/5

Best Mic For Hip-Hop

I've been researching this microphone for about six months. Before getting this microphone, I was using the SM7B, to which I still have. But honestly, I couldn't get the sound I wanted from the SM7B, even with it running through the Neve Shelford Channel. So my search began for a better microphone to use for Hip-Hop.

I'm a part of Universal Audio Group on Facebook. When I asked them about a good microphone for Hip-Hop, the usual suspects came up. The U87, TLM 103, TLM 49, AKG C414, Audio Technica 4050, Lauten Audio Eden FC-386, Manley Reference, Townsend Sphere, and so on. No one mentioned the Austrian Audio OC18.

I've used the majority of those microphones but I wanted something different so I purchased the OC18. I hooked it up to my Neve Shelford, recorded some vocals, and to be honest, I wasn't immediately blown away by the sound. I was scratching my head and thought to myself, "I'm sending this mic back for a refund. Later that night and for the next two days, I recorded more vocals and the more I listened, the more I liked this microphone and the sound it produces.

It doesn't sound like a Neumann 87, AKG 414, Manley, or Audio Technica. This microphone has its own unique sound. For me, it's the bang for the buck. I get a nice and expensive sound at an affordable price point. The OC18 has taken the place of my SM7B.

I'm looking forward to recording my voice-overs and Hip-Hop & Spoken Word projects with the OC18.

If you're looking for an affordable top-notch microphone to record spoken word and Hip-Hop, get the OC18.
Music background: Hip-Hop & Spoken Word
Rated 5/5

Great Overheads

A pair of these live over my drum kit. The sound is crystal clear without any harshness. Highly recommended.
Music background: Gigging drummer since 1975
Rated 5/5

Great Vocal Mic

My first mic was an AKG entry level mic, my 2nd mic was c414 xls.. after years of home recording, I eventually developed my ears enough to actually hear the differences in Mics. before purchasing this mic, I did do a lot of research and listened to a lot of samples of mics to hear the character of the mic. This mic is a top performer when it comes to the sound character you would want from a vocal mic and I think it outperforms both versions of AKG c414 mics. If you don't yet have the developed ears to hear the difference, it has a better controlled low end in which you need to hear to understand. a better sounding vocal track is produced with this mic.
Rated 5/5

Great for its purpose

I've had this mic about a year now, I did a bunch of research trying to find an upgrade for my vocal mic that wouldn't cost a used Honda civic, but could still compete and vwala. OC18 came into my life. Very true to the source, I primarily rec Rap vocals and have never had a vocalist whos voice sounded too thin or off because of the mic itself. if you have a solid mic pre than i honestly couldn't give you a reason not to try this mic out.
Music background: producer, Engineer
Rated 5/5

I would give it more stars if I could

After purchasing the Neumann 103, I thought I was all set for my podcasting. Then, a week later, I heard several reviews about this microphone on YouTube. I was so convinced that I decided to give it a try and was not disappointed.

The sound quality is fantastic. It works really really well with my Rodecaster Pro. And don't get me wrong. The Neumann 103 is fantastic as well, but the OC-18 is quieter. That's what tipped the scales for me.

Not only was I so happy that I moved the Neumann 103 to my second studio, but I traded in to EV mics and an Aston Stealth.
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