High-Performance Cardioid Condenser Microphone Capsule in Black


AKG's CK31 is a high-performance condenser microphone capsule with a wide cardioid polar pattern, especially designed for inexperienced speakers and applications where more than one person uses the microphone in turn.

NOTE: The image shown is for illustrative purposes only - actual color is black .

The CK31 capsule is integrated in a rugged metal housing and fits any mounting module of the DAM Series.  To prevent contact problems, the capsule is equipped with large-area, self-cleaning, gold-plated contacts with deep threads to prevent misalignment and ensure extra-long life.  The package includes a special two-part windscreen, which efficiently reduces wind and pop noise.


  • Cardioid polar pattern eliminates noise from the rear
  • 125° pickup angle for inexperienced or very vivacious speakers
  • Highly reliable capsule contacts prevent contact problems and ensure extra-long life
  • Highly efficient two-in-one windscreen reduces wind and pop noise equally
  • Wide frequency range for a speech-optimized audio performance


  • Transducer Principle: Condenser prepolarized
  • Frequency Range: 50 Hz - 20 kHz
  • Polar Pattern: Cardioid
  • Sensitivity at 1kHz: 20 mV/Pa = -34 dBV
  • Equivalent Noise Level: <21 dB-A
  • Sound Pressure Level for 1% THD: 125 dB
  • S/N Ratio (A-weighted): >73dB
  • Impedance: <600 ohms
  • Power Requirement: 9 to 52 volts phantom power, requires DPA adapter (included in GN or HM modules)
  • Finish: Dark gray matte
  • Size (dia. x L): 0.5" x 0.8"
  • Fitting Mounting Modules: GN 15, GN 15 E, GN 15 ES, GN 30, GN 30 E, GN 30 ES, GN 50, GN 50 E, GN 50 ES, GN 155 SET, HM 1000, LM 3, LM 3 L
  • Included Accessories: W 30 two-stage foam windscreen
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