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Product Detail |
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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
SPECIFICATIONS
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| ELEMENT |
Fixed-charge back plate
permanently polarized condenser |
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| POLAR
PATTERN |
Omnidirectional in hemisphere
above mounting surface |
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FREQUENCY RESPONSE |
30-20,000 Hz |
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| LOW
FREQUENCY ROLL-OFF |
80 Hz, 18 dB/octave |
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| 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 |
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IMPEDANCE |
Phantom: 200 ohms
Battery: 270 ohms |
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| 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.
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| DYNAMIC
RANGE (typical) |
Phantom: 111 dB, 1 kHz at Max SPL
Battery: 101 dB, 1 kHz at Max SPL |
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SIGNAL-TO-NOISE RATIO |
73 dB, 1 kHz at 1 Pa |
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| PHANTOM
POWER REQUIREMENTS |
11-52V DC, 2 mA typical |
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| BATTERY
TYPE |
1.5V AA/UM3 |
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| BATTERY
CURRENT / LIFE |
0.4 mA / 1200 hours typical
(alkaline) |
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| SWITCH |
Off, on-flat, on-roll-off |
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| WEIGHT
(MICROPHONE) |
2.8 oz (78 g) |
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| WEIGHT
(POWER MODULE) |
4.9 oz (139 g) |
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DIMENSIONS (MICROPHONE) |
2.56" (65.0 mm) diameter,
0.59" (15.1 mm) height |
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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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| OUTPUT
CONNECTOR (POWER MODULE) |
Integral 3-pin XLRM-type |
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| 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 |
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ACCESSORIES FURNISHED |
AT8531 power module; battery; soft
protective pouch |
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