Description

The AT831R is a cardioid condenser lavalier microphone that offers excellent sound isolation and high-quality audio capture. Its cardioid polar pattern reduces the pickup of sounds from the sides and rear, enhancing the isolation of the desired sound source. This model is terminated with an XLRM connector and includes a power module for versatility in different environments.

Features:

• Cardioid Polar Pattern: Provides excellent off-axis rejection, minimizing unwanted background noise and feedback.
• Wide Frequency Response: Ensures natural sound reproduction with a frequency range of 40 Hz to 20 kHz.
• High SPL Handling: Capable of handling high sound pressure levels, making it suitable for both vocal and instrument applications.
• Low Profile Design: Discreet and lightweight design for unobtrusive use, ideal for presentations, theater, and other applications requiring a low-profile microphone.
• Durable Construction: Built to withstand the rigors of everyday use in professional environments.
• Battery or Phantom Power: Operates on battery or phantom power, offering flexibility in various setups.

Specifications:

• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Cardioid
• Frequency Response: 40 Hz to 20 kHz
• Open Circuit Sensitivity: -46 dB (5.0 mV) re 1V at 1 Pa
• Impedance: 200 ohms
• Maximum Input Sound Level: 136 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range (Typical): 106 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio: 65 dB, 1 kHz at 1 Pa
• Power Requirements: 9-52V DC phantom power or 1.5V AA/UM3 battery
• Battery Life: 1200 hours typical (alkaline)
• Cable: 1.8 m (6′) long, 2.6 mm (0.10″) diameter, 2-conductor shielded cable
• Connector: XLRM-type

Dimensions:

• Microphone: 21.0 mm (0.83″) long, 10.2 mm (0.40″) diameter
• Power Module: 84.0 mm (3.31″) long, 18.9 mm (0.74″) diameter

Weight:

• Microphone: 3.5 grams (0.12 oz)
• Power Module: 68 grams (2.4 oz)

Included Components:

• AT831R Lavalier Microphone: The main microphone unit.
• AT8531 Power Module: Provides phantom power or battery operation.
• AT8417 Clothing Clip: For securely attaching the microphone to clothing.
• AT8131 Windscreen: Reduces wind noise and popping sounds.
• Battery: 1.5V AA/UM3 battery for power module.
• Protective Carrying Case: For storage and transport.

Applications:

• Live Performances: Ideal for use in live sound environments such as presentations, theater, and concerts where discreet microphone placement is essential.
• Broadcasting: Suitable for radio and television broadcasting, providing clear and natural sound reproduction.
• Recording Studios: Perfect for studio recording of vocals and instruments, offering excellent sound isolation and clarity.
• Public Speaking: Great for conferences, seminars, and other public speaking events where hands-free operation is needed.

Usage Tips:

1. Attaching the Microphone: Use the provided clothing clip to attach the microphone securely to your clothing, positioning it as close to the mouth as possible for optimal sound capture.
2. Using the Windscreen: Attach the windscreen to the microphone to reduce wind noise and plosive sounds.
3. Connecting to Power Module: Plug the microphone into the AT8531 power module using the XLR connector.
4. Powering the Microphone: Ensure the power module is powered by a 1.5V AA battery or phantom power from a compatible device.
5. Testing Audio Levels: Perform a sound check to ensure the microphone is capturing clear and balanced audio. Adjust the power module gain if necessary.
6. Maintenance: Regularly check the microphone and cable for any signs of wear or damage. Clean the windscreen and microphone as needed to maintain optimal performance.

The AT831R lavalier microphone is an essential accessory for professionals who need a reliable and high-quality microphone for various audio capture scenarios. Its durable construction, excellent sound isolation, and versatile power options make it a valuable tool for achieving professional-quality sound in different settings.