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The CM311 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.
The CM-311A is powered by a 9V battery or phantom power. It has a battery belt pack with an on/off switch, a programmable mic on/off switch, and a “Mic On” LED. The microphone comes with a custom molded hard plastic case.
Differoid noise-cancelling technology
for highest ambient noise rejection
Cardioid polar pattern
for outstanding gain before feedback
Condenser capsule with internal shock mount
for efficient rejection of mechanical and body noise
Robust headband construction
for maximum comfort and freedom of movement
Also available as the CM311L with professional three-pin mini XLR which fits all AKG wireless body-pack transmitters, or as the CM311AESH with a TA4F connector.
|Audio Frequency bandwidth||50 to 17000 Hz|
|Equivalent Noise Level||26 dB-A|
|Signal to Noise||68 dB-A|
|Electrical Impedance||75 Ohms|
|Powering Voltage||18 to 48 V|
|Audio Output Type||XLR|