AKG CM311 XLR Headworn Condenser Microphone

AKG
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Description

The AKG CM311 XLR reference head-worn condenser microphone 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.

This version of the CM311 is terminated in a standard XLR connector.

  • Transducer type: Electret condenser
  • Frequency response (typical): 50 Hz to 17 kHz
  • Polar pattern: Cardioid
  • Impedance: 75 ohms balanced
  • Recommended load impedance: 1000 ohms or greater
  • Open-circuit sensitivity, typical, close-talking: 4mV/Pa (-48 dB re 1V/Pa)
  • Power sensitivity, typical, close-talking: -42.5 dB re 1 mW/Pa
  • Equivalent noise level (self noise): 26 dB SPL typical, A-weighted
  • S/N ratio: 68 dB at 94 dB SPL
  • Maximum SPL: 148 dB SPL produces 3% THD
  • Operating voltage: 9V DC internal alkaline battery or 18-48V phantom power
  • Polarity: Positive pressure on diaphragm produces positive voltage on XLR pin 2 with respect to pin 3
  • Current drain: 6.5 mA nominal
  • Battery life: 85 hours
  • Off-attenuation: 70 dB
  • Output connectors: 3-pin pro audio (XLR type)
  • Cables: 2-conductor shielded, unbalanced cable, 42" (106.68 cm) from headband to battery pack. Use 2-conductor shielded mic cable (not included) between XLR connector and mixer mic input
  • Materials: High-impact plastic mic housing, brass boom, steel wire headband, high-impact plastic and steel battery pack
  • Finish: Satin black
  • Net weight: Head-worn mic: 2.1 oz (61 g), Belt pack and battery: 6.1 oz (173 g)
  • Dimensions: Headband: 5.5" (13.97 cm) diameter, adjustable. Boom: approx. 7" (17.78 cm) x 3" (7.62 cm)
  • Included accessories: Microphone carrying case, WS-6 foam pop filter, clothing clip

For support or warranty questions, please contact the AKG.

Phone: 818-920-3212