AKG CM311 Reference Condenser Headworn Microphone

The CM311 Mini XLR reference head-worn condenser microphone from AKG is designed for touring and live-sound applications. It sounds like the best handheld microphones: full, clear and distortion-free, even with the loudest singers.

Differoid stands for differential cardioid, which cancels ambient noise from floor monitors, crowds and other sources. Controlled field tests show that the Differoid provides up to 12dB more gain before feedback than conventional cardioid microphones. Many users of CM311 say that their house mix is better because the mic's isolation is nearly complete.

AKG CM311 Features

• Also available in TA4F and XLR variants (not pictured)
• Differoid noise-canceling technology for highest ambient noise rejection
• Condenser capsule with internal shock mount for efficient rejection of mechanical and body noise
• Robust headband construction for maximum comfort and freedom of movement

• CM311 Reference Condenser Headworn Microphone1
• Carrying Case1
• WS-6 Foam Pop Filter1
• Clothing Clip1

• Transducer TypeCondenser
• Polar PatternCardioid
• Frequency Response50 Hz - 17 kHz
• Output Impedance75 ohms
• Equivalent noise level26 dB-A
• Sensitivity1.25 mV/Pa
• Signal to Noise68 dB-A
• Finishsatin black
• Audio Output
  • Type: XLR
  • Gender: Female
  • Contacts: 3-pin
• Powering Interface
  • Voltage: 18 to 48 V
• Dimensions (L x W x H)17.76 x 13.97 x 7.62 mm
• Net Weight61 g