The Electro-Voice RE27N/D is a professional-quality dynamic cardioid microphone designed for on-air broadcast production announces and voice-over, high-quality recording and sound reinforcement applications.The RE27N/D utilizes a revolutionary neodymium-alloy magnet and a reinforced diaphragm dome, a combination offering increased sensitivity (up to 6-dB more output), undistorted output at high sound pressure levels and an extended high-frequency response. The exceptional sensitivity of the RE27N/D, excellent transient response and inherently low noise of the dynamic transducer, all combine to ensure a superior signal-to-noise ratio, easily comparable to the finest condenser cardioid microphones. To further reduce noise, a highly effective hum-bucking coil is used to attenuate hum from lighting and other sources. The RE27N/Ds continuously Variable-D design reduces bassboosting proximity effect to maintain a uniform low-frequency response, up-close or at a distance.Two easily operated bass roll-off switches, offering a sharp low-frequency cut at 200 Hz or a gentle roll-off, are available for special situations where bass attenuation is required. A third switch is available for reducing the high-frequency treble boost.The true, uniform cardioid polar pattern of the RE27N/D offers the greatest rejection at 180 off axis, insuring superior gain-beforefeedback. An integral blast and wind filter covers each acoustic opening on the RE27N/D, allowing close-talk situations with no worry of P-pop, breath sounds or excessive sibilance. Part of the filter also shock mounts the internal microphone transducer, reducing the transfer of vibration from external sources. This shock-mount system along with the extremely rugged exterior steel casing allows the RE27N/D to withstand all the rigors of professional use.Electro-Voice RE27N/D Features:Variable-D reduces proximity effect to maintain uniform low frequency response at any distanceThree switchable filters: one high frequency, two low frequenciesInternal blast/wind filter cover reduces P-popping, breath sounds and excessive sibilanceExcellent off-axis rejectionStand clamp included