Question about M-Audio MXL 990/991 Recording Mic Duo and Audio Buddy Package Microphone

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Problems with my MXL 990

Hi there!!!! how are you??? I hope really good....
well, a long time ago I had a problem with MY DIGI 002 and you helped me a lot, so right now Im having big troubles with my condensers (2 of them) I bought 2 packages of MXL 990 - 991, but 991 works perfectly...
The problem with 990 is that every time I plug it for recording this huge radio signals keep getting into the proyect and wont let me record alright.. Ive tried changing locations, changing cables, verify my power (energy) but nothing worked.... I have 2 MXL 991 and other 2 micros and they work just fine.... I hope you can help me... thank you a lot for reading and taking some of your time for helping me solve this... :) hugs!!!

Joce

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I had the same problem, what really happened was that the wires from the XLR were too close to the electronics on the board.

There happen to be different versions. One is with the components like the image on the link.
http://microphone-parts.com/wp-content/uploads/2012/11/990-circuit.jpg
The other, like mine has the board upside down, and that explains why the wires could get so close to the electronics.

Open your microphone and with a toothpick carefully push them away from the electronics, so that the excess wire is no longer that close to the electronics, but more towards the XLR-connection. You could try to keep them that way with a tiny tie wrap.

I suppose the problem was RFI/EMI within the microphone itself.

It might not work for you, but it solved the problem for me.

Posted on May 13, 2014

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I Would Take It Back For An Exchange.

Posted on Jan 05, 2009

Sounds like the frame of the microphone itself has become ungrounded. You could try VERY
carefully disassemble the mic and check for a bad ground or a bad wire connecting to the mic
body.

Posted on Sep 14, 2008

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1 Answer

Anybody knows mxl 990 works with behinger usb 302 mixer??


The user manual says Phantom Powered Mic input which means you should be able to use a condenser microphone requireing Phantom Power.

Mar 24, 2013 | MXL 990 Professional Microphone

1 Answer

Is the 990 an externally polarized capsule or electret?


The MXL 990 is an externally polarized condenser microphone. You will nee to provide 48v Phantom power to use it. Alternatively there is a USB version, the MXL 990 USB which gets it['s power from the USB port.

Dec 31, 2010 | MXL 990 Professional Microphone

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Would you please help me? My MXL 990 doesn't work when i plug it in the M-audio USB interface. The led doesn't light. I use XLR cable. Please help. Thanks a lot!


Make sure the Phantom Power on the Audio buddy is on. If that fails, get in touch with MXL and they will troubleshoot it with you.

Oct 30, 2010 | M-Audio MXL 990/991 Recording Mic Duo and...

1 Answer

I bought a MXL 990 USB, and I cannot connect it to my PC. I followed all the instructions, but couldn't get a sound from it. Can somebody help me? I have Windows Vista


Make sure you've switched your sound input from the default (internal mic/input) to the MXL 990. This should be somewhere in the sound options.

If you're sure it's not getting power, you need to send it back.

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3 Answers

Can't operate my MXL 990


If it is an MXL 990 Condenser that comes in the grey case with a shockmount and a black hard mount I can solve your problem. (If it is USB I know nothing about that unit).

This MXL 990 microphone MUST have 48v phantom power in order to operate. If you aren't familiar with the term phantom power read the first link:

Phantom power - http://en.wikipedia.org/wiki/Phantom_power
MXL User Guide - http://www.mxlmics.com/support/guides.html

If yours is one of the older MXL 990's it should have an XLR connector on the bottom -
XLR Defined - http://en.wikipedia.org/wiki/XLR_connector

Your mixer (I am guessing its a Peavey, Tascam, Mackie) or something entry level like that may or may not have phantom power. I am guessing not. But if it does, it will have a switch that says 48v phantom power and most likely a green or red LED next to it to show you when its on. This mic will NOT work without phantom power.

Best suggestion: Verify that your mic is the MXL 990 Condenser, if it is it needs 48v phantom power. Check your mixer and see if it has 48v phantom power. The only computer soundcard that I know of that is used by a lot of folks is the M-Audio Delta 1010LT. It has XLR inputs but NO phantom power on it.

There's your answer.
Ray

Feb 09, 2009 | MXL 990s Professional Microphone

2 Answers

MXL 990 doesn't work


Your other preamp does not have phantom power to supply power to the microphone. All condensor mics like this need phantom power. The Audio Buddy provides phantom power, which is why it was shipped with those condensor mics

Jan 16, 2009 | M-Audio MXL 990/991 Recording Mic Duo and...

2 Answers

Problems with my MXL 990 (radio)


g'day mate.
The problem you have will relate to the big antennas in your area. Most radio stations pump more than 100,000 watts these days. So it really comes down to the shielding and what's called Radio Frequency Interference rejection of your microphones to keep this out. I would STRONGLY urge you to take the mics back and get a refund,or change them over for something else. They are VERY cheap, there is no real solution to your problem, except for better design... means spend more mullah. If you are looking for a decent low cost condenser mic, I recommend an AKG Perception. I have used AKG for years, and this mic is a great sounding low cost unit.

Hope this helps you. Nothing can be done to improve what you have, they are a cheapo item. Good Luck

regards
robotek

Sep 11, 2008 | MXL 990s Professional Microphone

1 Answer

Problems with my MXL 990 (radio)


Luis
I guarantee you the antennas are most likely the culprit. Your only solution is to have a tech check the unit, OR purchase an inline RF filter from Radio Shack. It is also possible that you have a capacitor or other component going bad, that is causing the unit to heterodyne and become a nice front end for a radio receiver.

You do have other microphones, and they do not do this. Averages says it is most likely the microphone has an issue or its design. I have one of these MXL 990s too, and my mic began motorboating a few months ago while I was trying to record with it. It may be a quality issue with these mics. They aren't complicated though, any component electronic tech should be able to check it out.

Sep 11, 2008 | MXL 990s Professional Microphone

1 Answer

MXL 990 has really low output


These are really cheap mics! I have two dozen of them because what I do requires the mic to be expendable. The capsule is pretty fragile and just a little drop or hit to the mic can drastically alter the frequency response and output level. If you record with it and it has a hollow sound I would bet this is what happened. If you can generate white or pink noise out of your system, then record it. Just hold the mic in front of the speaker. Play it back and compare the tone of the recording to what you just heard. Hollow? There you are!

Aug 28, 2008 | MXL 990 Professional Microphone

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