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| Omnidirectional Condenser Boundary Microphone. Made by Audio-Technica. (MP.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
Specs: - 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
- 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
- INCLUDED ACCESSORIES: AT8531 power module; battery; soft protective pouch
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