The CROWN CM-311 offers the best of both worlds: Differoid®
performance in a comfortable headworn microphone. Designed for touring
and live-sound applications it sounds like the best handheld
microphones-full, clear, and distortion-free, even with the loudest
Differoid® stands for differential cardioid it is a
noisecancelling mic, which cancels sounds beyond a few inches away –
such as floor monitors, instruments on stage, and crowd noise.
Controlled field tests showed that the Differoid® provides up to 12 dB
more gain before feedback than conventional cardioid microphones. This
results in the CROWN CM-311 having outstanding gain-before-feedback and
isolation. Many users of the Differoid® say that their house mix is
better because the mic’s isolation is nearly complete.
Lightweight and comfortable, the mic’s headband and boom adjust to fit any singer.
|Frequency range||50 to 17,000 Hz|
|Sensitivity||CM-311A: 4 mV/Pa (-48 dBV); CM-311L: 1.25 mV/Pa (-58 dBV)|
|Max. SPL||148 dB|
|Equivalent noise level (IEC 60268-4, A-weighted)||26 dB-A|
|Signal/noise ratio (A-weighted)||68 dB (A-weighted)|
|Impedance||75 ohms balanced|
|Power requirement||18 to 48 V phantom power to DIN/IEC|
|Connector||CM-311A: 3-pin XLR; CM-311L: 3-pin Mini XLR|
|Cable||106 cm (42 in.)|
|Net weight||61g (2.1 oz.)|