Audix A231 Condenser Vocal Microphone Specification & DataSheet
- June 13, 2024
- AUDIX
Table of Contents
Audix A231 Condenser Vocal Microphone
OVERVIEW
- The A231 is a large diaphragm condenser microphone built for the most discerning studio user. With its externally-biased “true condenser” capsule and low-noise circuitry, the A231 is able to capture the nuances of the human voice as well as the rich overtones of acoustic instruments with natural warmth and in stunning detail. An exceptionally consistent cardioid polar pattern focuses on the performance while offering smooth off-axis rejection.
- The 33 mm condenser capsule of the A231 features a precision-tensioned diaphragm made from a specially formulated, heat-treated film with gold deposition distributed evenly to the far edges of the diaphragm. The result is a 25% greater effective diaphragm area when compared to the capsule of a typical large diaphragm microphone.
- Behind the double-woven steel mesh grille of the A231, acoustic reflections and diffractions are minimized for transparent sound capture. The internal shock mount isolates the capsule from mechanical vibrations, eliminating the need for a bulky external shock mount. Proprietary impedance control between the capsule and circuitry ensures consistent and reliable performance across a wide range of environments.
- Designed, machined, assembled, and tested by Audix in Wilsonville, Oregon.
FEATURES
- 33 mm externally-biased condenser capsule
- 25% greater effective diaphragm area
- Cardioid polar pattern
- Proprietary internal shock mount
- The low noise preamp circuitry
- Machined aluminum body with gold-plated brass band
APPLICATIONS
- Vocals
- Choir
- Voiceover
- Podcasting
- Piano
- Acoustic instruments
FREQUENCY AND POLAR RESPONSE
SPECIFICATIONS
- Technology / Capsule Technology 33 mm externally-biased condenser capsule / 29 mm 3.4 micron gold-sputtered diaphragm
- Frequency Range 20 Hz – 20 kHz
- Polar Pattern Cardioid
- Output Impedance 150 ohms
- Sensitivity 16 mV / Pa @ 1 kHz
- Signal to Noise Ratio 82 dB
- Maximum SPL 140 dB
- Dynamic Range 128 dB
- CMRR >70 dB @ 1 kHz
- Maximum Output Voltage 4 V rms
- Cable Drive Capability >303 meters (1000ft) cable = 100pF per meter
- Equivalent Noise Level 12 dBA
- Operating Voltage 48 V ± 4 V Phantom
- Connector 3-pin XLR m
- Materials / Finish
- Body: Machined aluminum and gold-plated brass band
- Grille: Steel alloy
- Weight 330 g / 11.6 oz
OPERATION AND MAINTENANCE
- The A231 is a low-impedance microphone and should be plugged into a “mic level” input on your console, mixer, or recording device with 48 V phantom power. Allow a minimum of 20 seconds for the A231 to stabilize after phantom power is supplied.
- Avoid plugging or unplugging the microphone from a PA system unless the channel is muted, or phantom power to the A231 channel is turned off. Failure to do so may result in a loud “popping” noise or damage to the PA system or studio monitors.
- The A231 is manufactured to exact specifications. The capsule is highly sensitive and the microphone should be handled with care. Avoid exposing the micro-phone to extreme temperatures, moisture, and shock. Store your microphone in a protective case when not in use.
USER TIPS
- The sound source should face the Audix logo, which indicates the front of the microphone.
- Further miking techniques may be found at www.audixusa.com.
DIAGRAM
Grille
- Double-woven steel mesh grille
- Ultra-thin acoustic foam
Capsule
- 33 mm externally-biased condenser
- 25% greater effective diaphragm area
- Minimized acoustic reflections and diffractions
- Internal shock mount
Circuitry
- Low-noise preamp
- Actively driven shield
Housing
- Machined from solid aircraft-grade aluminum alloy
- Black anodized and laser-engraved
- Gold-plated brass band
ACCESSORIES
SUPPLIED ACCESSORIES
- POUCHAXMED – Protective zippered carrying case
- DCLIP – Heavy-duty nylon molded snap-on clip
OPTIONAL ACCESSORIES
- APS2 – Two-channel 48 V phantom power supply with 110 V switchable to 240 V and detachable power cord
- TRIPOD – Metal tripod desktop mic stand
- STANDKD – Short pedestal stand with telescoping boom arm
- DFLEX – Dual pivot rim-mounted clip with extra wide butterfly jaws
- CBL20 – 20’ premium XLR-XLR balanced mic cable. Quad conductor, twisted pair with a braided shield for conductivity. 6 mm PVC jacketed
- CBLDR25 – 25’ premium right angle XLR balanced mic cable. Quad conductor, twisted pair with braided shield for conductivity. 6 mm PVC jacketed
- PD133 – Pop diffuser to control plosives
DIMENSIONS
© 2021 Audix Corporation. Audix is a registered trademark of the Audix corporation. Specifications are subject to change without notice. For service and warranty information, visit audixusa.com
FREQUENTLY ASKED QUESTIONS
What is the Audix A231 Condenser Vocal Microphone?
The Audix A231 is a high-quality condenser vocal microphone designed for professional audio recording and live performances. It is known for its exceptional audio performance and is popular among vocalists and musicians.
What are the key features of the Audix A231 microphone?
The Audix A231 microphone typically features a cardioid pickup pattern, a large diaphragm capsule, a wide frequency response, high sensitivity, and is designed to capture vocals with precision and clarity.
Is the Audix A231 suitable for recording vocals?
Yes, the Audix A231 is specifically designed for recording vocals, providing clear and detailed sound reproduction, making it ideal for singers, studio recording, and live vocal performances.
Can I use it for instrument recording?
While primarily designed for vocals, the Audix A231 can also be used for instrument recording, particularly for acoustic instruments and guitar amplifiers, where clarity and detail are crucial.
Does the Audix A231 microphone require additional audio interfaces or drivers?
The Audix A231 typically uses an XLR connection and requires an audio interface or mixer with XLR inputs. It does not require additional drivers; it's compatible with standard audio equipment.
Is there a headphone monitoring feature?
No, the Audix A231 microphone itself does not include a headphone monitoring feature. You would need a separate audio interface or mixer with headphone monitoring capabilities for this.
What is the frequency response of the Audix A231 microphone?
The microphone typically has a 20 Hz frequency response, providing clear and natural sound reproduction.
Is there an adjustable gain control on the microphone?
No, the Audix A231 microphone does not typically have an adjustable gain control. Gain control is usually handled by the connected audio interface or mixer.
What are the weight and dimensions of the Audix A231 microphone?
The 1.78 Pounds weight and 12 x 10 x 4 inches dimensions of the Audix A231 microphone.
Is it suitable for live performances?
Yes, the Audix A231 microphone is suitable for live performances and is often used by professional vocalists and musicians on stage in various music genres.
Can I use it with recording software and DAWs?
Yes, the Audix A231 is compatible with various recording software and digital audio workstations (DAWs) on both Windows and Mac platforms, provided you have the necessary audio interface and setup.
Is there a carrying case included for transport and storage?
The Audix A231 microphone package may include a protective carrying case for convenient transport and safe storage, but it's advisable to check the product listing or package contents to confirm.
What type of connector does it use?
The Audix A231 microphone typically uses an XLR connector, which is a standard for professional microphones and audio equipment.
Is there a warranty for the Audix A231 Condenser Vocal Microphone?
Warranties for the Audix A231 microphone can vary, but they often range from 1 year to 5 years or more
Where can I purchase the Audix A231 Condenser Vocal Microphone?
You can typically purchase the Audix A231 Condenser Vocal Microphone from authorized Audix dealers, music stores, or reputable online marketplaces to ensure you receive genuine products.
Does it come with a shock mount or pop filter?
Some packages of the Audix A231 microphone may include a shock mount or pop filter, but it's important to check the product listing or package contents to confirm if these accessories are included.
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