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Audix A231 Large-Diaphragm Cardioid Condenser Microphone with Shockmount and Pop Filter

BH #AUA231USM • MFR #A231-USM
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Audix A231 Large-Diaphragm Cardioid Condenser Microphone with Shockmount and Pop Filter
Key Features
  • Vocal, Instrument, Podcast Recording
  • A231 Large-Diaphragm Microphone
  • Rycote USM Shockmount and Pop Filter
  • Cardioid Polar Pattern
Designed for professional studio recordings and podcasts, the Audix A231 with Shockmount and Pop Filter is a premium large-diaphragm condenser microphone engineered for discerning users who demand exceptional detail and warmth. Its externally biased “true condenser” capsule and low-noise circuitry deliver pristine audio, capturing the nuances of the human voice and the rich overtones of acoustic instruments with remarkable clarity. The A231’s exceptionally consistent cardioid polar pattern focuses on the performance while providing smooth off-axis rejection, ensuring a clean and natural sound.
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Audix A231-USM Overview

Truly Transparent Studio Recording
Designed for professional studio recordings and podcasts, the Audix A231 with Shockmount and Pop Filter is a premium large-diaphragm condenser microphone engineered for discerning users who demand exceptional detail and warmth. Its externally biased “true condenser” capsule and low-noise circuitry deliver pristine audio, capturing the nuances of the human voice and the rich overtones of acoustic instruments with remarkable clarity. The A231’s exceptionally consistent cardioid polar pattern focuses on the performance while providing smooth off-axis rejection, ensuring a clean and natural sound.

This package includes a Rycote USM shockmount and pop filter, effectively isolating the microphone from unwanted vibrations and plosive sounds. The A231 is proudly designed, machined, assembled, and tested by Audix in Wilsonville, Oregon.

Precision-Engineered Capsule
  • At the heart of the A231 is a 33mm condenser capsule, featuring a precision-tensioned diaphragm made from a specially formulated, heat-treated film.
  • Gold deposition extends to the far edges of the diaphragm, increasing the effective surface area by 25% compared to standard large-diaphragm microphones.
  • The result is enhanced sensitivity and detail, making it ideal for critical studio applications.
Active Driven Shield for Signal Purity
  • An active driven shield protects the signal path from the capsule to the preamp, preventing interference from capacitive coupling and eliminating unwanted signal leakage.
  • This ensures the microphone maintains an ultra-clean, noise-free signal.
Optimized Grille and Internal Shockmount
  • The A231’s double-woven steel-mesh grille is lined with an ultrathin acoustic foam, providing superior resistance to vocal plosives—perfect for podcasting and vocal recording.
  • Additionally, the internal shockmount isolates the capsule from mechanical vibrations and handling noise, preserving the integrity of every recording.
UPC: 687471241332

Audix A231-USM Specs

Key Specs
Microphone Type
Large Diaphragm
Polar Pattern
Cardioid
Element Type
Condenser
Controls
None
Frequency Response
20 Hz to 20 kHz
Maximum SPL
140 dB
Analog Output
1x XLR 3-Pin Male (Locking)
Power Sources
Phantom Power
Microphone
Microphone Type
Large Diaphragm
Polar Pattern
Cardioid
Element Type
Condenser
Sound Field
Mono
Diaphragm
1.3" / 33 mm
Orientation
Side Address
Controls
None
Circuitry
Solid-State
Performance
Frequency Response
20 Hz to 20 kHz
Maximum SPL
140 dB
Sensitivity
16 mV/Pa (@ 1kHz)
Dynamic Range
128 dB
Equivalent Noise Level
12 dB (A Weighted)
Connectivity
Analog Output Connector
1x XLR 3-Pin Male (Locking)
Power
Power Sources
Phantom Power
Operating Voltage
48 V (Phantom Power)
Physical
Color
Black
Mounting Thread Size
5/8"-27 Female
Dimensions
ø: 2.1 x L: 5.7" / ø: 54.5 x L: 146 mm
Weight
11.6 oz / 330 g

Audix A231-USM Reviews

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