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.
| 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 |
| Power Module Output Connector | Integral 3-pin XLRM-type |
| Cable (L x Dia) | 25.0' (7.6 m) x 0.13" (3.2 mm) 2-conductor, shielded cable with TA3F-type connector permanently attached to microphone |
| Accessories Furnished | AT8531 power module; battery; soft protective pouch |
| Microphone Dimensions (H x Dia) | 0.59" (15.1 mm) x 2.56" (65 mm) |
| Power Module Dimensions (H x W x D) | 3.31" (84 mm) x 2.48" (63 mm) x 0.87" (22 mm) |
| Microphone Weight | 2.8 oz (78 g) |
| Power Module Weight | 4.9 oz (139 g) |
Usually arrives in 5-9 business days.
