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AT831b Specification Sheet
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AT831b Cardioid Condenser Lavalier Microphone
This clip-on lavalier mic provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. It offers excellent gain before feedback and suppression of background noise. An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. It operates on battery or phantom power.- Clip-on lavalier mic also excels in acoustic guitar applications
- Provides crisp, full-sounding voice and instrument pickup
- Operates on battery or phantom power
- 6' (1.8 m) cable permanently attached to mic, TA3F connector at power module
- Also available as:
AT831R – with phantom-only power module
AT831c – less power module; includes clothing clip and windscreen only; 10' (3 m) cable, unterminated
AT831cW – less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak® wireless systems
AT831cT5 – less power module; includes clothing clip and windscreen only; 55" (1.4 m) cable terminated with TA5F connector
| SPECIFICATIONS | |
|---|---|
| ELEMENT | Fixed-charge back plate, permanently polarized condenser |
| POLAR PATTERN | Cardioid |
| FREQUENCY RESPONSE | 40-18,000 Hz |
| LOW FREQUENCY ROLL-OFF | 80 Hz, 18 dB/octave |
| OPEN CIRCUIT SENSITIVITY | Phantom: -44 dB (6.3 mV) re 1V at 1 Pa
Battery: -46 dB (5.0 mV) re 1V at 1 Pa |
| IMPEDANCE | Phantom: 200 ohms
Battery: 270 ohms |
| MAXIMUM INPUT SOUND LEVEL | Phantom: 135 dB SPL, 1 kHz at 1% T.H.D.
Battery: 121 dB SPL, 1 kHz at 1% T.H.D. |
| DYNAMIC RANGE (typical) | Phantom: 106 dB, 1 kHz at Max SPL
Battery: 92 dB, 1 kHz at Max SPL |
| SIGNAL-TO-NOISE RATIO | 65 dB, 1 kHz at 1 Pa |
| PHANTOM POWER REQUIREMENTS | 11-52V DC, 2 mA typical |
| BATTERY TYPE | 1.5V AA/UM3 |
| BATTERY CURRENT / LIFE | 0.4 mA / 1200 hours typical (alkaline) |
| SWITCH | Off, on-flat, on-roll-off |
| WEIGHT (MICROPHONE) | 0.1 oz (2.8 g) |
| WEIGHT (POWER MODULE) | 4.9 oz (139 g) |
| DIMENSIONS (MICROPHONE) | 0.98" (25.0 mm) long,
0.40" (10.2 mm) diameter |
| DIMENSIONS (POWER MODULE) | 3.31" (84.0 mm) H x
2.48" (63.0 mm) W x 0.87" (22.0 mm) D |
| OUTPUT CONNECTOR (POWER MODULE) | Integral 3-pin XLRM-type |
| CABLE | 6' (1.8 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor, shielded cable with TA3F-type connector |
| ACCESSORIES FURNISHED | Clothing clip; AT8444 instrument adapter; AT8531 power module; AT8116 windscreen; battery; protective carrying case |
| AUDIO-TECHNICA CASE STYLE | M1 |
| SPECIFICATION GRAPHS | ||
|---|---|---|
| Click on the chart to view the larger image | ||
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Conditions
AT831b Cardioid Condenser Lavalier Microphone
2
2
This product has great features
Pros: veil-free sound, good space imaging
Cons: slight high-pitched voice absence and few glitter.
Good value for money.
November 2, 2011
Good microphone but could use more mounting options
I bought this microphone to use on acoustic guitar. The included sound hole mount works and the adjustment allows for some limited tonal adjustments. Audio-Technica should consider offering additional instrument mounts for this quality microphone such as the 4099G mount offered by DPA that positions the microphone over the fretboard of the guitar for more natural sound. I prototyped an alternative such mount and the results are encouraging.
October 24, 2011
1-2 of 2
(7 Questions : 7 Answers)
Product Q&A
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how can I connect this AT831b Cardioid Condenser Lavalier Microphone
to my macbook for voice recording. Will the Griffin Technology iMic Audio USB Interface work? Or do I need something else?
Sincerely,
to my macbook for voice recording. Will the Griffin Technology iMic Audio USB Interface work? Or do I need something else?
Sincerely,
1 year, 3 months ago
Answers
Answer:Â
Thank you for your inquiry. Yes, you would need some type of audio interface. I believe the iMic will work, although you will need an XLR female to 3.5m male adapter cableAge:Â 45-54
Experience:Â Pro
1 year, 3 months ago
by
Stow, OH
Additional information about AudioSolutionsManager could not be loaded.
Has staff answer
1 answer
Will the Shure X2u XLR-to-USB Microphone Adapter work with the AT831b Cardioid Condenser Lavalier Microphone?
Will the Shure X2u XLR-to-USB Microphone Adapter work with the AT831b Cardioid Condenser Lavalier Microphone?
1 year, 3 months ago
Answers
Answer:Â
Thank you fro your inquiry. We have not tested this, but I see no reason why it would not.Age:Â 45-54
Experience:Â Pro
1 year, 3 months ago
by
Stow, OH
Additional information about AudioSolutionsManager could not be loaded.
With out a manual I'm not sure what the power switch settings are. I'm assuming one is for battery and the other phantom power.
I'm also missing a screw that holds the clip on for the battery pack. Does anyone know where I can obtain a replacement?
Thanks!
~Paul
I'm also missing a screw that holds the clip on for the battery pack. Does anyone know where I can obtain a replacement?
Thanks!
~Paul
Age:Â 55-65
User Type:Â Studio
Experience:Â Amateur
Products related to my question
1 year, 3 months ago
by
Anonymous
NY
Answers
Answer:Â
Thank you for your inquiry. The switch positions are Off, Bass roll off (bent line) and no roll off (straight line). The below link will take you to the spec sheet for this microphone.http://www.audio-technica.com/cms/r...
Contact our parts department at 330-686-2600 option 4 and they can help with the missing screw.
Age:Â 45-54
1 year, 2 months ago
by
Stow, OH
Additional information about AudioSolutionsManager could not be loaded.
This preamp has an RCA jack for plugging in a mic, or other pickup. Can an RCA plug replace the existing plug on the mic cable, can the cable be shortened?
Thanks
Thanks
Age:Â Over 65
User Type:Â Live Sound
Experience:Â Amateur
1 year, 1 month ago
Answers
Answer:Â
Thank you for your inquiry. This probably will not work correctly. Most (all that I know of) RCA connectors are connectors are line level, unbalanced and high impedance. The output of the microphone is mic level, balanced and low impedance. If you get any sound it will probably be very low in volume and noisy.Age:Â 45-54
Experience:Â Pro
1 year ago
by
Stow, OH
Additional information about AudioSolutionsManager could not be loaded.
We use this for Society meetings of about 100 people in a hall and through a Bose L1 Compact system. We get occasional and intermittent feedback which usually drops off but repeats randomly. It is not discerned by most of the audience but I would like to eradicate this problem. Do you have any suggestions?
Age:Â 55-65
User Type:Â Other
Experience:Â Novice
9 months ago
Answers
Answer:Â
Thank you for your inquiry. Feedback occurs when the amplified sound from any loudspeaker reenters the sound system through a microphone and is amplified again and again, causing a loop. To avoid or lessen the likelihood of feedback, try some of these steps:- Keep the microphone behind the loudspeakers to minimize the sound that can reenter the microphone. If the microphone is in front of the speakers, then feedback is nearly guaranteed.
- Your microphone has a unidirectional (cardioid) polar pattern. A cardioid microphone has its maximum rejection at the rear of the mic. Keep monitors or loudspeakers in this area of maximum rejection.
- Place the microphone close to the sound source. When you reduce the distance between the sound source and the microphone by half, you double the sound pressure level at the microphone. This increases your gain before feedback (i.e., it allows your sound system to produce more SPL before reaching a level that would induce feedback).
- Use an equalizer or feedback eliminator to dampen the frequencies where feedback is occuring.
Age:Â 45-54
Experience:Â Pro
9 months ago
by
Stow, OH
Additional information about AudioSolutionsManager could not be loaded.
AT831b : Cardioid Condenser Lavalier Microphone
