Electro Voice ND457B Hypercardioid Dynamic Vocal Microphone

Electro Voice ND457B Dynamic Vocal Microphone

The Electro-Voice N/D457B is a hypercardioid dynamic microphone ideally suited for vocalist in live sound reproduction for large and small venues where ambient sound pressure levels are extreme "hard rock" and gain-before­ feedback is a problem. The N/D4578 utilizes a revolutionary neodymium alloy to form the EV-exclusive N/DYM"' magnet. With a computer-optimized design, the N/DYM magnetic structure is maximized in the N/D4578 to provide 6 dB more output sensitivity over conven­tional designs. The exceptional sensitivity of the N/0457B combined with the inherently low noise of a dynamic transducer insures superior signal-to-­noise ratio ready for digital recording and sampling. To further reduce noise, a highly effective hum-bucking coil is used to cancel hum from lighting and other power sources.

Specifications:

• Frequency Response:
  • Close Response: 25 to 21,000 Hz
  • Far Response: 55 to 21,000 Hz
• Polar Pattern: Hypercardioid
• Open Circuit Voltage: 3.1 mV/pascal@ 1,000 Hz
• Power Sensitivity: -51 dB@ 1,000 Hz (0 dB= 1 mW/pascal)
• Dynamic Range: 144 dB
• Equivalent Output Noise: 14 dB (0 dB = 0.0002 dynes/cm2)
• Impedance: 150 ohms balanced (lo-Z)
• Weight: 7.05 ounces (200 grams)
• Dimensions:
  • Height: 7.12 in. (181 mm)
  • Diameter: 2.05 in. (52 mm)
  • Shank: 0.80 in. (20 mm)