We are closed Friday 29th March & Monday 1st April for Easter

Audio Technica U851A Boundary Microphone has been discontinued, here are some related products you might like:

Audio Technica U851A Boundary Microphone

Product #10872 | SKU U851A | Audio Technica
This product is no longer available what does this mean?
Not currently for sale
Contact us for more information
This product is no longer available what does this mean?

Overview

AT Omnidirectional Condenser Boundary Microphone.

Description

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.

Product Features:

  • 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 silicone 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

Technical Specifications:

  • Element: Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
  • Frequency Response: 30-20,000 Hz
  • Low Frequency Roll-Off: 80 Hz, 18 dB/octave
  • Open Circuit Sensitivity:
  • Phantom: –40 dB (10.0 mV) re 1V at 1 Pa
  • Battery: –41 dB (8.9 mV) re 1V at 1 Pa
  • Impedance:
  • Phantom: 200 ohms
  • Battery: 270 ohms
  • Maximum Input Sound Level:
  • Phantom: 133 dB SPL, 1 kHz at 1% T.H.D.
  • Battery: 123 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range: (Typical)
  • Phantom: 111 dB,1 kHz at Max SPL
  • Battery: 101 dB, 1 kHz at Max SPL
  • Signal to Noise Ratio: 72 dB, 1 kHz at 1 Pa
  • Phantom Power requirements: 11-52V DC, 2 mA typical
  • Battery Type: 1.5V AA/UM3
  • Battery Current / Life: 0.4 mA / 1200 hours typical (alkaline)
  • Switch: Off, on-flat, on-roll-off
  • Weight (Microphone): 8.6 oz (244 g)
  • Weight (Power Module): 4.9 oz (139 g)
  • Dimemsions (Microphone):
  • 4.25" (108.0 mm) long,
  • 3.31" (84.0 mm) maximum width,
  • 0.91" (23.0 mm) height
  • Dimensions (Power Module):
  • 3.31" (84.0 mm) H x
  • 2.48" (63.0 mm) W x
  • 0.87" (22.0 mm) D
  • Output Connector (Power module):
  • Integral 3-pin XLRM-type
  • Cable: 25.0' (7.6 m) long (permanently attached to microphone),
  • 0.13" (3.2 mm) diameter, 2-conductor,
  • shielded cable with TA3F-type connector
  • Optional Interchngeable Elements:
  • UE-H hypercardioid (100°);
  • UE-O omnidirectional (360°)
  • Accessories Furnished:
  • AT8531 power module
  • battery; soft protective pouch

Reviews

0.0 (no ratings yet)
Own or use this product?
Give it a quick rating:
Thanks for your rating!
Share your thoughts with other customers:
Write a review

Details

  • Product: Audio Technica U851A Boundary Microphone
  • Manufacturer: Audio Technica
  • Model: U851A
  • SKU: U851A
  • RM Product #: 10872
  • Warranty: 1 year manufacturer warranty on all Audio Technica products. 5 year limited warranty on all Audio Technica Wired Microphones.

Recently Viewed

View All