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.
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
|
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 |
|
I mpedance: 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: 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 Requiremens |
11-52V DC, 2 mA typical |
|
Battery Type |
1.5V AA/UM3 |
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Battery Current Life |
0.4 mA / 1200 hours typical (alkaline) |
|
Switch |
Off, on-flat, on-roll-off |
|
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 |