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Audio-Technica AT831B Lavalier

Audio-Technica AT831B Lavalier

AT831B(S4)

Audio-Technica

  • £159.00
Usually shipped within 2-3 working days

The AT831b requires 11-52V DC phantom power, or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.

This clip-on lavalier mic AT831b provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 Instrument Microphone Adapter.

It offers excellent gain before feedback and suppression of background noise. An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off.

AT831b: 6' (1.8 m) permanently attached cable terminated with TA3F connector; AT8531 power module (with 80 Hz high-pass filter) for battery or phantom power.

Product Features

  • Clip-on lavalier mic provides crisp, full-sounding voice pickup
  • Also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 instrument adapter
  • Excellent gain before feedback and suppression of background noise
  • UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Operates on battery or phantom power
  • AT8531 power module
  • Finish: Black

                                                    Product Specifications 

                                                    • ELEMENT:  Fixed-charge back plate permanently polarized condenser
                                                    • POLAR PATTERN:  Cardioid
                                                    • FREQUENCY RESPONSE:  40-18,000 Hz
                                                    • LOW FREQUENCY ROLL-OFF:  80 Hz, 18 dB/octave
                                                    • OPEN CIRCUIT SENSITIVITY:  –44 dB (6.3 mV) / (Phantom / Battery) –46 dB (5.0 mV) re 1V at 1 Pa*
                                                    • IMPEDANCE (Phantom / Battery):  200 ohms / 270 ohms
                                                    • MAXIMUM INPUT SOUND LEVEL:  135 dB / 121 dB SPL, (Phantom / Battery) 1 kHz at 1% T.H.D.
                                                    • DYNAMIC RANGE (typical):  106 dB / 92 dB, (Phantom / Battery) 1 kHz at Max SPL
                                                    • SIGNAL-TO-NOISE RATIO:  65 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
                                                    • WEIGHT (less cable and accessories)
                                                      • MICROPHONE 2.8 g (0.1 oz)
                                                      • POWER MODULE 139 g (4.9 oz)
                                                    • DIMENSIONS
                                                      • MICROPHONE 25.0 mm (0.98") long, 10.2 mm (0.40") diameter
                                                      • POWER MODULE 84.0 mm (3.31") H x 63.0 mm (2.48") W x 22.0 mm (0.87") D
                                                    • OUTPUT CONNECTOR (power module):  Integral 3-pin XLRM-type 
                                                    • CABLE:  1.8 m (6') long (permanently attached to microphone), 2.6 mm ( 0.10") diameter, 2-conductor, shielded cable with TA3F-type connector
                                                    Manufacturer: Audio Technica

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