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Audio-Technica U841A Omnidirectional Condenser Boundary Microphone (Discontinued)

Part # U841A
Model # U841A

The U841A delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. This omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound reinforcement, professional recording, television and conferencing in surface-mount applications.

Description

Details

The U841A delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. Equipped with UniGuard® RFI-shielding technology, this omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound reinforcement, professional recording, television and conferencing in surface-mount applications. The U841A has a 360° pickup angle and operates on battery or phantom power.

Features

Features

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • 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 silicone foam bottom pad 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
Specification
ElementFixed-charge back plate permanently polarized condenser
Polar PatternOmnidirectional in hemisphere above mounting surface
Frequency Response30-20,000 Hz
Low Frequency Roll-Off80 Hz, 18 dB/octave
Open Circuit SensitivityPhantom: –39 dB (11.2 mV) re 1V at 1 Pa
Battery: –40 dB (10.0 mV) re 1V at 1 Pa
ImpedancePhantom: 200 ohms
Battery: 270 ohms
Maximum Input Sound LevelPhantom: 132 dB, 1 kHz at 1% T.H.D.
Battery: 122 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 Ratio73 dB, 1 kHz at 1 Pa
Phantom Power Requirements11-52V DC, 2 mA typical
Battery Type1.5V AA/UM3
Battery Current / Life0.4 mA / 1200 hours typical (alkaline)
SwitchOff, on-flat, on-roll-off
Power Module Output ConnectorIntegral 3-pin XLRM-type
Cable (L x Dia)25.0' (7.6 m) x 0.13" (3.2 mm) 2-conductor, shielded cable with TA3F-type connector permanently attached to microphone
Accessories FurnishedAT8531 power module; battery; soft protective pouch
Microphone Dimensions (H x Dia)0.59" (15.1 mm) x 2.56" (65 mm)
Power Module Dimensions (H x W x D)3.31" (84 mm) x 2.48" (63 mm) x 0.87" (22 mm)
Microphone Weight2.8 oz (78 g)
Power Module Weight4.9 oz (139 g)
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