Audio-Technica AT831b Cardioid Condenser Lavalier Microphone

Miniature Cardioid Condenser Microphone Operates on Battery or Phantom Power

This clip-on lavalier mic provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar 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. It operates on battery or phantom power.

Variations:
AT831b - with battery/phantom power module
AT831R - with phantom-only power module
AT831c - less power module; includes clothing clip and windscreen only; 10' (3 m) cable, unterminated
AT831cW - less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systems
AT831cT - less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA4F connector for Telex, HME and Swintec
AT831cT4 - less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA4F connector for Shure
AT831cT5 - less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA5F connector

Features:

• Clip-on lavalier mic also excels in acoustic guitar applications
• Provides crisp, full-sounding voice and instrument pickup
• Operates on battery or phantom power
• 6' (1.8 m) cable permanently attached to mic, TA3F connector at power module

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:
  Phantom: -44 dB (6.3 mV) re 1V at 1 Pa
  Battery: -46 dB (5.0 mV) re 1V at 1 Pa
• IMPEDANCE:
  Phantom: 200 ohms
  Battery: 270 ohms
• MAXIMUM INPUT SOUND LEVEL:
  Phantom: 135 dB SPL, 1 kHz at 1% T.H.D.
  Battery: 121 dB SPL, 1 kHz at 1% T.H.D.
• DYNAMIC RANGE (typical):
  Phantom: 106 dB, 1 kHz at Max SPL
  Battery: 92 dB, 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 (MICROPHONE): 0.1 oz (2.8 g)
• WEIGHT (POWER MODULE): 4.9 oz (139 g)
• DIMENSIONS (MICROPHONE): 0.98" (25.0 mm) long, 0.40" (10.2 mm) diameter
• DIMENSIONS (POWER MODULE): 3.31" (84.0 mm) H x 2.48" (63.0 mm) W x 0.87" (22.0 mm) D
• OUTPUT CONNECTOR (POWER MODULE): Integral 3-pin XLRM-type
• CABLE: 6' (1.8 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
• ACCESSORIES FURNISHED: Clothing clip; AT8444 instrument adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case
• AUDIO-TECHNICA CASE STYLE: M1

Includes:

• AT831b Lavalier Microphone
• AT8417 Clothing Clip
• AT8444 Instrument Adapter
• AT8531 Detatchable Power Module
• AT8116 Foam Windscreen
• AA Battery
• Protective Carrying Case
• 1 Year Warranty