Overview
With its low-profile and rugged-yet-highly-flexible design, the ES931PMWML MicroLine® 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 MicroLine® polar pattern with narrow 90° acceptance angle, comes with a two-stage foam windscreen and is available with low-reflectance black (ES931PMML) or white (ES931PMWML) finish. Additional interchangeable elements – omnidirectional (360°), cardioid (120°) and hypercardioid (100°) – are available separately.
Features
- Wall/ceiling plate power module permits permanent installation in standard, single-gang electrical box
- Uniform MicroLine® polar pattern with narrow 90° 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 | MicroLine® (line cardioid) |
| FREQUENCY RESPONSE | 30-20,000 Hz |
| LOW FREQUENCY ROLL-OFF | 80 Hz, 18 dB/octave |
| OPEN CIRCUIT SENSITIVITY | –35 dB (17.7 mV) re 1V at 1 Pa |
| IMPEDANCE | 200 ohms |
| MAXIMUM INPUT SOUND LEVEL | 123 dB SPL, 1 kHz at 1% T.H.D. |
| DYNAMIC RANGE (typical) | 102 dB, 1 kHz at Max SPL |
| SIGNAL-TO-NOISE RATIO | 73 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) | 43 g (1.5 oz) |
| WEIGHT (POWER MODULE) | 97 g (3.4 oz) |
| DIMENSIONS (MICROPHONE) | 271.4 mm (10.7") long, 8.0 mm (0.31") 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-C cardioid (120°) ESE-H hypercardioid (100°) |
| ACCESSORIES FURNISHED | AT8534 wall/ceiling plate power module; AT8138(WH) two-stage foam windscreen |
| AUDIO-TECHNICA CASE STYLE | M42 |
