The Electro-Voice RE27N/D is a professional-quality dynamiccardioid microphone designed for broadcast productionannounce and voice-over, high-quality recording and soundreinforcement applications. The RE27N/D utilizes arevolutionary neodymium-alloy magnet and a reinforceddiaphragm dome, a combination offering increased sensitivity(up to 6-dB more output), undistorted output at high soundpressure levels and an extended high-frequency response.The exceptional sensitivity of the RE27N/D, excellent transientresponse and inherently low noise of the dynamic transducer,all combine to ensure a superior signal-to-noise ratio, easilycomparable to the finest condenser cardioid microphones. tofurther reduce noise, a highly effective hum-bucking coil isused to attenuate hum from lighting and other sources. TheRE27N/D’s continuously Variable-D‚ design reduces bass-boosting “proximity effect” to maintain a uniform low-frequencyresponse, up-close or at a distance. Two easily operated bassroll-off switches, offering a sharp low-frequency cut at 200 Hzor a gentle roll-off, are available for special situations wherebass attenuation is required. A third switch is available forreducing the high-frequency treble boost. The true, uniformcardioid polar pattern of the RE27N/D offers the greatestrejection at 180° off axis, insuring superior gain-before-feedback. An integral blast and wind filter covers each acousticopening on the RE27N/D, allowing “close-talk” situations withno worry of “P-pop,” breath sounds or excessive sibilance.Part of the filter also shock mounts the internal microphonetransducer, reducing the transfer of vibration from externalsources. This shock-mount system along with the extremelyrugged exterior steel casing allows the RE27N/D to withstandall the rigors of professional use.