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
|
| |
| 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 (78 g) |
|
| WEIGHT
(POWER MODULE) |
4.9 oz (139 g) |
|
|
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 |
|
| OUTPUT
CONNECTOR (POWER MODULE) |
Integral 3-pin XLRM-type |
|
| 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 FURNISHED |
AT8531 power module; battery; soft
protective pouch |
|
|
|
