Omnidirectional Condenser Boundary Microphone

Omnidirectional Condenser Boundary Microphone Omnidirectional Condenser Boundary Microphone Omnidirectional Condenser Boundary Microphone Omnidirectional Condenser Boundary Microphone
Omnidirectional Condenser Boundary Microphone
U841A
Omnidirectional Condenser Boundary Microphone

Overview

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

Features

  • 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
Tech Specs

Technical Specification

SKU U841A
Frequency Response 30-20,000 Hz
Impedance "Phantom: 200 ohms Battery: 270 ohms"
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
Accessories AT8531 power module; battery; soft protective pouch
Element Fixed-charge back plate permanently polarized condenser
Polar Pattern Omnidirectional in hemisphere above mounting surface
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
Open Circuit Sensitivity –39 dB (11.2 mV) re 1V at 1 Pa Battery: –40 dB (10.0 mV) re 1V at 1 Pa
Output connector (POWER MODULE) Integral 3-pin XLRM-type
Battery Type 1.5V AA/UM3
Battery Life 0.4 mA / 1200 hours typical (alkaline)
Phantom Power Requirements 11-52V DC, 2 mA typical
Maximum Input Sound Level Phantom: 132 dB, 1 kHz at 1% T.H.D. Battery: 122 dB SPL, 1 kHz at 1% T.H.D.
Signal to Noise Ratio 73 dB, 1 kHz at 1 Pa
Switches Off, on-flat, on-roll-off
Dynamic Range Phantom:111 dB, 1 kHz at Max SPL Battery: 101 dB, 1 kHz at Max SPL
Dimensions DIMENSIONS (MICROPHONE) 2.56"" (65.0 mm) diameter, 0.59"" (15.1 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
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