Overview
With its low-profile and rugged-yet-highly-flexible design, the ES931PMWC cardioid condenser gooseneck microphone is a perfect fit for boardrooms, school and government settings, teleconferencing, houses of worship and other installed applications. The microphone, which features UniGuard® RFI-shielding technology for outstanding rejection of radio frequency interference (RFI), attaches to the provided AT8534 wall/ceiling plate power module via a special TA3F-type connector designed to optimize RFI immunity.
Switches in the power module permit a +10 dB gain setting for extra sensitive pickup as well as a choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass UniSteep® filter) to help control undesired ambient noise. The power module mounts in a standard metal U.S. single-gang electrical box.
This gooseneck mic provides a uniform cardioid polar pattern with 120° acceptance angle, comes with a two-stage foam windscreen and is available with low-reflectance black (ES931PMC) or white (ES931PMWC) finish. Additional interchangeable elements – omnidirectional (360°), hypercardioid (100°) and MicroLine® (90°) – are available separately.
Features
- Wall/ceiling plate power module permits permanent installation in standard, single-gang electrical box
- Uniform cardioid polar pattern with 120° acceptance angle
- Low-profile design with low-reflectance finish for minimum visibility
- Superior off-axis rejection for maximum gain before feedback
- UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
- UniSteep® filter provides a steep low-frequency attenuation to minimize pickup of undesired ambient noise
- Rugged, easy-to-adjust, small-diameter gooseneck can be positioned quickly into desired shape
- Available interchangeable elements permit angle of acceptance from 90° to 360°
- Ideal for boardrooms, school and government settings, teleconferencing, houses of worship and other installed applications
Specifications
| ELEMENT | Fixed-charge back plate, permanently polarized condenser |
| POLAR PATTERN | Cardioid |
| FREQUENCY RESPONSE | 30-20,000 Hz |
| LOW FREQUENCY ROLL-OFF | 80 Hz, 18 dB/octave |
| OPEN CIRCUIT SENSITIVITY | –40 dB (10.0 mV) re 1V at 1 Pa |
| IMPEDANCE | 200 ohms |
| MAXIMUM INPUT SOUND LEVEL | 128 dB SPL, 1 kHz at 1% T.H.D. |
| DYNAMIC RANGE (typical) | 102 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 |
| SWITCHES | Flat, roll-off; 0 dB, +10 dB gain setting |
| WEIGHT (MICROPHONE) | 39 g (1.4 oz) |
| WEIGHT (POWER MODULE) | 97 g (3.4 oz) |
| DIMENSIONS (MICROPHONE) | 152.4 mm (6.0") long (with capsule), 8.4 mm (0.33") head diameter, 11.6 mm (0.46") base diameter |
| DIMENSIONS (POWER MODULE) | 71.0 mm (2.80") W x 115.5 mm (4.55") H x 36.0 mm (1.42") D |
| OUTPUT CONNECTOR (POWER MODULE) | Screw-terminals |
| OPTIONAL INTERCHANGEABLE ELEMENTS | ESE-O omnidirectional (360°) ESE-H hypercardioid (100°) ESE-ML MicroLine (90°) |
| ACCESSORIES FURNISHED | AT8534 wall/ceiling plate power module; AT8109(WH) two-stage foam windscreen |
| AUDIO-TECHNICA CASE STYLE | M41 |
