Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements—available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.
| Element | Fixed-charge back plate, permanently polarized condenser |
|---|---|
| Polar Pattern | Half-cardioid (cardioid in hemisphere above mounting surface) |
| Frequency Response | 30-20,000 Hz |
| Low Frequency Response | 80 Hz, 18 dB/octave |
| Open Circuit Sensitivity | –34 dB (19.9 mV) re 1V at 1 Pa |
| Impedance | 200 ohms |
| Maximum Input Sound Level | 134 dB SPL, 1 kHz at 1% T.H.D. |
| Dynamic Range (typical) | 108 dB, 1 kHz at Max SPL |
| Signal-to-Noise Ratio | 68 dB, 1 kHz at 1 Pa |
| Phantom Power Requirements | 11-52V DC, 4 mA typical |
| Switch | Flat, roll-off |
| Output Connector | TB3M-type |
| Cable | 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors |
| Dimensions (H x W x D) | 4.25" (108.0 mm) x 3.31" (84.0 mm) x 0.91" (23.0 mm) |
| Weight | 9.2 oz (262 g) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
