Question about Audio Technica Audio-Technica AT4040 Professional Microphone

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Low Freq Pulsing on Audio Technica AT4040 Microphone

I have an AT4040 microphone <1 yr old. Recently, I've found a problem with low freq pulsing sound at around 1-3 hz or so. I've tried swapping out with a different mic in the signal chain and found that other mics do not have that problem. What is this likely to be caused by?

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  • 267 Answers

That is a condenser mic and I bet the others you are trying are dynamic. Does your unit supply phantom power? It should. Or look for a power injector as a separate box.

Posted on Mar 03, 2018

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Posted on Jan 02, 2017

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SOURCE: Audio technica microphone atm33a socket detached

Unfortunately you will have to contact them here:http://www.audio-technica.com/cms/site/74a0c4b691ac33ae/index.html as they don't seem to have that document listed on their site.

Posted on Jan 18, 2010

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1 Answer

My At 4040 just stopped working, no sound ?


Use a volt meter to measure the phantom power. Measure DC voltage between pins 2 and 1 and then between 3 and 1. They should measure the same and be between 12-48 volts dc.

Dec 30, 2012 | Audio Technica Audio-Technica AT4040...

1 Answer

What FM frequency does the radio need to be on to use a wireless Disney Mickey mouse microphone?


Each microphone has a different FM Freq. If you can not find a Freq there is a very small hole in the mic near the Mic switch. You will need a jewlers screwdriver to make a freq. adjustment. Hold down the applause button while very close to your FM radio. Use manual tuning on your FM radio until you hear applause. If there is a local station playing on the Freq you can insert the jewelers screwdriver into the small hole and change the FM Freq for the Mic. You only need to make "fractional adjustments" to change the Freq. setting. Once you make a mic freq. adjustment change the radio freq SLIGHTLY up and down until you hear the applause.

This should get anyone going that is having difficulty with this microphone.

Thanks for choosing FixYa.

Kelly

Aug 02, 2010 | Toys

1 Answer

I have a low level hum in the MIC like a motorcyle in mt AT 4040


Remember this is a condenser mic that REQUIRES phantom power. There are several failures regarding this phantom power delivery that COULD cause your problem.

A "LEAKY" mic cable that is not a fully balanced cable can cause the problem. Test with another cable to exhonorate your cable.

A failure of the input bypass caps in your amp/preamp can cause the input to become unbalanced and let in hum.

A phantom power that is improperly filtered can also cause this. Test using a different source of phantom power.

Remember that you can easily get feedback that may oscillate like hum if you have a monitor speaker anywhere in "earshot" of the mic. They are very sensitive and intended for studio use.

Sep 26, 2009 | Audio Technica Audio-Technica AT4040...

1 Answer

Audio-Technica AT2020 low audio output


Pins 2&3 are the correct ones to use for checking the voice coil. Pin 1 is chassis ground and should always read infinite resistance to the other two.

That microphone has an impedance of 100 ohms, so if you are reading 30 ohms you clearly have a problem with the voice coil.

Good Luck
BB

May 16, 2009 | Audio Technica Audio-Technica AT2020...

1 Answer

Two diffrent units with two diffrent frequincys . i wantto change


I hate to be the bearer of bad news but those units are fixed frequencies and cannot be changed. You either have to find a mic that matches your receiver or vice-versa. The freeway 200 series comes in 3 freqs. two of witch you have with the addition of 170.245. Maybe you can find someone who has a damaged mic but still has the receiver with the freq. that you need for your mic.

Apr 11, 2009 | Audio Technica Audio-Technica ATW-T202...

5 Answers

Hannah montana mmicrophone


I found this on Yahoo:

I Have The Directions Here
1. for best proformance please note the following
a. place the FM radio in an area of minimal nosie and interference
b. do not set vol to max
c. has to be within 15 ft
d. hear your own voice, will not be brodcasted over the radio
e. in some areas, all frequencies in 92 to 106 FM range could be occupied by a local radio station. in this rare case, your mic will not be functional
3. move mic close to radio while tuning, tuning into frequnecy may take practice. may need to move your radio dial slowly and sing or talk in to the mic

Buttons on the mic:
A.... Applause
S.... DJ Scracth Efeect
M.... Mic
Source(s): Hanna Montana FM wirless mic instruction manual

Feb 10, 2008 | Audio Players & Recorders

1 Answer

Microphone distorted


is this a power mic? check with a back up mic if it does it with the backup its not them its past them.

Jan 01, 2008 | Audio Technica Audio-Technica AT4040...

1 Answer

Audio technica at 4040 constant ground hum noise


you can test the cable from connection to connection for continuity from end to end. There should be no resistance( a complete short) If the cable is good, there is a bad or broken connection inside the mic. Good Luck

Jun 23, 2007 | Audio Technica Audio-Technica AT4040...

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