If there were ever a microphone that was the epitome of classic, hi-fidelity sound, it would be the Austrian-designed C12. Original developed by AKG Acoustics in 1953, the C12 is revered for its smooth, airy frequency response. The design of the C12 was unique in its remote capsule polarizing technology. The ability to change the capsule’s polar response variably between cardioid, omnidirectional and figure-8 (and six intermediate patterns between) from the power supply instead of with switches on board the microphone made the C12 the most versatile large diaphragm tube microphone of its time. Considered by many to be the finest sounding microphone ever produced, original C12 microphones are still in use in recording studios throughout the world.

TELEFUNKEN Elektroakustik is proud to manufacture the C12 once again. Each microphone features a newly manufactured CK12 capsule built from the original manufacturer’s specifications. The amplifier circuit utilizes a European-made Haufe (manufacturer of the original) output transformer built to match the original, and a microphone grade NOS GE JAN 6072a vacuum tube. Every part of the C12 microphone has been reverse engineered and recreated exactly to the original to match not only its sonic integrity, but also to preserve the impressive point-to-point construction and aesthetic of the original.

Each C12 microphone comes complete with M910 power supply, M810 25′ quad-shielded ACX-7 tube microphone cable, M710elastic shock mount, FC10 locking flight case and WB10 wooden microphone box. All TELEFUNKEN Elektroakustikmicrophones are hand-built and assembled in Connecticut, USA.


*Check out a comparison made by Sweetwater Sound of a Telefunken Elektroakustik C12 with a vintage Telefunken C12

The pro-tools sessions can be downloaded here

Audio only can be downloaded here


images (click to expand)

Type Pressure Gradient Condenser
Capsule CK12 - 25 mm Edge Terminated Diaphragm
Tube Type GE JAN 6072a (NOS)
Transformer Haufe T14/1
Polar Pattern 9-Pattern Variable including Omnidirectional, Cardioid, and Bidirectional
Frequency range 20 Hz - 20 kHz, ± 3 dB
Sensitivity 10 mV/Pa ± 1 dB
THD at 1kHz at 1Pa (Amplifier) < 0.25%
Output Impedance 250 ?
Maximum SPL (for 1% THD) 130dB
S/N Ratio 85 dBA
Self Noise (Amplifier) 9 dBA
Dimensions 250 mm L x 42.5 mm Dia.
Weight 567 g
Current Draw from Mains 90 mA
Power supply M 910 PSU - 7 Pin Female XLR Input, 3 Pin Male XLR Output, Polar Pattern Selector
Cable M 810 - 25 ft Accusound TX-7 Cable, Vintage Compatible 8 Pin Female Stand Mount, 7 Pin Male XLR
Shockmount M 710 - Clasping Elastic Mount
Wooden box WB10
Flight Case FC10 - Vintage Style Locking Combination Flight Case, FC10S for Stereo Set