AUDIX / A231

The A231 is a large diaphragm condenser microphone designed, assembled, and tested at Audix's headquarters in the United States for experienced studio engineers. Equipped with an externally biased condenser capsule with cardioid characteristics and low-noise circuitry, the A231 is able to capture not only the nuances of the human voice, but also the natural warmth and amazing detail of overtones from acoustic instruments.

1. Large diameter 33mm condenser capsule with unique gold-deposited diaphragm
2. Active driven shielding prevents interference due to capacitive coupling in the circuit path
3. Double woven steel mesh with built-in shock mount

[Product specifications]
Format: Condenser microphone
Directivity: Unidirectional
Frequency band: 20Hz ~ 20kHz
Output impedance: 150Ω
Sensitivity: 16mV/Pa (at 1kHz)
S/N ratio: 82dB
Maximum input sound pressure SPL: 140dB
Equivalent noise level: 12dBA
Dynamic range: 128dB
CMRR:> 70dB (at 1kHz)
Maximum output voltage: 4Vrms
Signal transmission ability: > 303m (when using 100pF/m cable)
Connection terminal: XLR connector
Power supply: Phantom power (48V ± 4V)
Exterior material: machined aluminum black finish
Mass: 280g
Accessories: Microphone clip DCLIP (3/8-5/8 conversion screw included), carrying pouch

The large diameter 33mm condenser capsule installed in the A231 uses a diaphragm that is precisely covered with a proprietary heat-treated film that is coated with gold to the entire edge of the diaphragm. This increases the effective area of ​​the diaphragm by 25% compared to typical large diaphragm microphone capsules. By adopting a driven shield and unique impedance control between the microphone capsule and the board, we achieve consistent high reliability in a variety of environments.
The A231's double-woven steel mesh minimizes acoustic reflection and diffraction for crystal clear sound. In addition, a built-in shock mount reduces the impact of touch noise and vibration on the microphone capsule, eliminating the need for an external shock mount.