Audio-Technica U841A
Boundary Microphone, Condenser, Omnidirectional

U841A

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

• 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 silicon 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

Specifications

• Element: Fixed-charge back plate permanently polarized condenser
• Polar Pattern: Omnidirectional in hemisphere above mounting surface
• Frequency Response: 30-20,000 Hz
• Low Frequency Roll-Off: 80 Hz, 18 dB/octave
• Open Circuit Sensitivity: Phantom: -39 dB (11.2 mV) re 1V at 1 Pa; Battery: -40 dB (10.0 mV) re 1V at 1 Pa
• Impedance: Phantom: 200 ohms; Battery: 270 ohms
• 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.
• Dynamic Range (typical): Phantom: 111 dB, 1 kHz at Max SPL; Battery: 101 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio: 73 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): 2.8 oz
• Weight (power module): 4.9 oz
• Dimensions (microphone): 2.56" diameter, 0.59" height
• Dimensions (power module, H x W x D): 3.31" x 2.48" x 0.87"
• Output Connector (power module): Integral 3-pin XLRM-type
• Cable: 25' long (permanently attached to microphone), 0.13" diameter, 2-conductor, shielded cable with TA3F-type connector
• Accessories Furnished: AT8531 power module; battery; soft protective pouch

Our Part #  U841A