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9 polar patternsCathedral Guitars C12 CG

Multi-Pattern Tube Condenser Microphone

The “C12•CG” is a large-diaphragm tube condenser microphone presented as a modern reincarnation of AKG’s famous C12 — a mic that was discontinued in 1963. These new C12 mics are built by AMI in Gaylord, KS.

The headbasket, body, and chassis were already in production by AMI as a “DIY C12” kit. Working in conjunction with Cathedral Guitars, AMI is now producing completed, working microphones built into these C12 bodies.

To reduce manufacturing costs without adversely affecting the audio quality, printed circuit boards are employed, rather than point-to-point wiring as in the original C12.

The capsule is an original brass CK-12, manufactured by AKG and refurbished by Klaus Heyne of German Masterworks.

The output transformer is AMI’s replica of the Hiller T14 transformer in the later production runs of C12.

To save cost and complexity, the mic is wired with a 6-pin XLRM connector rather than a Tuchel connector.

The power supply is provided by AMI, and provides switching among 9 polar patterns.

Permalink: Cathedral Guitars C12-CG

The mic was released in 2013.


Pickup Patterns Pads & Filters
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
Weight Length Max Diameter Interface(s)
n/a 255mm (10.04'') 43mm (1.69'')
  • 3-pin XLR male (3)
Power Specifications
  • Includes tube power supply

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