Description

The Audio-Technica AT4900b-48 is a modular microphone body designed for use with interchangeable capsules from Audio-Technica’s 40 Series, such as the AT4049b-EL, AT4051b-EL, and AT4053b-EL. This system allows users to select the best capsule for their specific recording needs, providing flexibility and versatility in various recording environments. Here are the full details:

Audio-Technica AT4900b-48 Details:

• Product Type: Microphone Body for Modular System
• Model Number: AT4900b-48
• Brand: Audio-Technica

Features:

1. Modular Design:
   • The AT4900b-48 is designed to work with interchangeable capsules, allowing users to customize their microphone setup based on the recording requirements.
2. High-Quality Construction:
   • Built with a durable metal housing to ensure longevity and reliability in professional use.
3. Phantom Power:
   • Requires 48V DC phantom power, which is standard for professional condenser microphones.
4. Transformerless Circuitry:
   • The transformerless circuitry reduces low-frequency distortion and provides a more accurate transient response.
5. Low Self-Noise:
   • Designed with low self-noise to provide quiet and clear audio capture, essential for professional recordings.
6. High SPL Handling:
   • Capable of handling high sound pressure levels (SPL), making it suitable for loud sound sources without distortion.
7. Switchable 80 Hz High-Pass Filter:
   • Reduces low-frequency noise and rumble, allowing for cleaner audio capture in various environments.
8. Switchable 10 dB Pad:
   • Provides an additional level of headroom when dealing with extremely loud sound sources, preventing distortion.

Specifications:

• Compatibility: Works with AT4049b-EL (omnidirectional), AT4051b-EL (cardioid), and AT4053b-EL (hypercardioid) capsules
• Element: Designed to accommodate various condenser capsules
• Polar Pattern: Depends on the capsule used (omnidirectional, cardioid, hypercardioid)
• Frequency Response: 20 Hz to 20 kHz (varies slightly based on capsule used)
• Open Circuit Sensitivity: Varies based on capsule used
• Impedance: 100 ohms
• Maximum Input Sound Level: 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL with 10 dB pad (nominal, varies based on capsule used)
• Noise: 14-16 dB SPL (varies based on capsule used)
• Dynamic Range (Typical): 129-131 dB, 1 kHz at Max SPL (varies based on capsule used)
• Signal-to-Noise Ratio: 78-80 dB, 1 kHz at 1 Pa (varies based on capsule used)
• Phantom Power Requirements: 48V DC, 4.8 mA typical
• Switches: Flat, roll-off; 10 dB pad
• Weight: 135 g (4.8 oz)
• Dimensions:
  • Length: 120.5 mm (4.74″)
  • Diameter: 21.0 mm (0.83″)
• Output Connector: Integral 3-pin XLRM-type

Applications:

• Studio Recording:
  • Ideal for use in professional studio environments, providing versatility for recording vocals, acoustic instruments, percussion, and more.
• Live Sound:
  • Suitable for live sound reinforcement applications, allowing for customized microphone setups based on the performance requirements.
• Broadcast:
  • Perfect for broadcast applications, ensuring high-quality sound capture with flexible capsule options.
• Field Recording:
  • Excellent for field recording, offering flexibility to choose the appropriate capsule for different environmental conditions.

Accessories Included:

• AT8405a Stand Clamp:
  • Securely holds the microphone in place and reduces handling noise.
• Protective Case:
  • Provides safe storage and transport for the microphone body and capsules.

Additional Information:

• Durability:
  • Built with rugged construction to withstand the demands of professional use.
• Flexibility:
  • The modular design and switchable high-pass filter and pad provide flexibility in various recording situations.

The Audio-Technica AT4900b-48 is a versatile and high-quality microphone body designed for use with interchangeable capsules, offering a customizable solution for professional recording, live sound, and broadcast applications. Its detailed sound capture, high SPL handling, and low self-noise make it an excellent choice for a wide range of applications. If you need further information or have additional questions about the AT4900b-48, please let me know!