Description

The Audio-Technica AT4021 is a high-quality, small-diaphragm cardioid condenser microphone designed for professional recording and sound reinforcement applications. It is particularly well-suited for capturing acoustic instruments, percussion, and other sound sources requiring a detailed and accurate sound. Here are the full details:

Audio-Technica AT4021 Details:

• Product Type: Small-Diaphragm Cardioid Condenser Microphone
• Model Number: AT4021
• Brand: Audio-Technica

Features:

1. Cardioid Polar Pattern:
   • The AT4021 features a cardioid polar pattern, providing focused pickup of sound sources directly in front of the microphone while minimizing off-axis noise and feedback.
2. Condenser Element:
   • The condenser element delivers a detailed and accurate sound capture, ideal for studio recording and live sound applications.
3. Extended Frequency Response:
   • The microphone offers a wide frequency response from 20 Hz to 20 kHz, ensuring natural and detailed sound reproduction across the entire audio spectrum.
4. High SPL Handling:
   • Capable of handling high sound pressure levels (SPL) up to 156 dB, making it suitable for loud sound sources without distortion.
5. Low Self-Noise:
   • Designed with low self-noise (14 dB SPL), providing quiet and clear audio capture, essential for professional recordings.
6. Superior Transient Response:
   • Captures fast transients accurately, making it ideal for percussion and plucked string instruments.
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.
9. Rugged Construction:
   • Built with a durable metal housing to withstand the rigors of professional use.

Specifications:

• Element: Fixed-charge back plate permanently polarized condenser
• Polar Pattern: Cardioid
• Frequency Response: 20 Hz to 20 kHz
• Open Circuit Sensitivity: -34 dB (19.9 mV) re 1V at 1 Pa
• Impedance: 250 ohms
• Maximum Input Sound Level: 146 dB SPL, 1 kHz at 1% T.H.D.; 156 dB SPL, with 10 dB pad (nominal)
• Noise: 14 dB SPL
• Dynamic Range (Typical): 132 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio: 80 dB, 1 kHz at 1 Pa
• Phantom Power Requirements: 48V DC, 3.8 mA typical
• Switches: Flat, roll-off; 10 dB pad
• Weight: 108 g (3.8 oz)
• Dimensions:
  • Length: 149.0 mm (5.87″)
  • Diameter: 21.0 mm (0.83″)
• Output Connector: Integral 3-pin XLRM-type

Applications:

• Acoustic Instruments:
  • Ideal for capturing the detailed sound of acoustic guitars, pianos, and string instruments with clarity and accuracy.
• Percussion:
  • Suitable for recording various percussion instruments, ensuring that the nuances and dynamics are faithfully reproduced.
• Orchestral Recording:
  • Excellent for use in recording orchestras, capturing the natural sound of the instruments with precision.
• Studio Recording:
  • Perfect for studio environments where high-quality, detailed sound capture is required for vocals and instruments.

Accessories Included:

• AT8405a Stand Clamp:
  • Securely holds the microphone in place and reduces handling noise.
• Windscreen:
  • Reduces plosive sounds and wind noise during recordings.
• Protective Case:
  • Provides safe storage and transport for the microphone.

Additional Information:

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

The Audio-Technica AT4021 is a versatile and high-quality microphone designed for professional recording and sound reinforcement. 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 AT4021, please let me know!