U851A
Discontinued
Cardioid Condenser Boundary Microphone

U851A

U851A
  • Overzicht
  • Gallerij
  • Eigenschappen
  • Specifications
  • Reviews

Overzicht

U851A

Cardioid Condenser Boundary Microphone

Eigenschappen

Offering outstanding Audio-Technica sound for surface-mount applications, the U851A features a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. This battery or phantom-powered condenser microphone accepts interchangeable condenser elements available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. Its heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. With superior off-axis rejection and maximum gain-before-feedback, this professional microphone sets audio-quality standards in challenging acoustic environments.

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
  • Superior off-axis rejection for maximum gain before feedback
  • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Small-diameter UniPoint capsule near boundary eliminates phase distortion and delivers clear, high-output performance
  • Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance black finish for minimum visibility
  • Operates on battery or phantom power

Specifications

Microphone
Element Polarized condenser
Polair patroon Half-cardioid (cardioid in hemisphere above mounting surface)
Frequentierespons 30 - 20,000 Hz
Lage frequentie roll-off 80 Hz, 18 dB/octave
Gevoeligheid open circuit Phantom: -40 dB (10.0 mV) re 1V at 1 Pa Battery: -41 dB (8.9 mV) re 1V at 1 Pa
Maximaal geluidingangsniveau Phantom: 133 dB, 1 kHz at 1% T.H.D. - Battery: 123 dB, 1 kHz at 1% T.H.D.
Dynamisch bereik Phantom: 111 dB,1 kHz at Max SPL - Battery: 101 dB, 1 kHz at Max SPL
Signaal-ruisverhouding 72 dB, 1 kHz at 1 Pa
Vereisten fantoomvoeding 11-52V DC, 2 mA typical
Batterijtype 1.5V AA/UM3
Batterijspanning/levensduur 0.4 mA / 1200 hours typical (alkaline)
Schakelaars Off, on-flat, on-roll-off
Gewicht 8.6 oz (244 g)
Kabel 25.0' (7.6 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
Afmetingen 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0 mm) height
Uitgangsconnector 3-pin XLRM-type
Meegeleverde accessoires AT8531 power module; battery; soft protective pouch

Reviews

Downloads

U851A Declaration of Conformity
U851A Frequency Response
U851A Polar Pattern
U851A Submittal Sheet
U851A Specification Sheet