I buy a mxl condenser mic,when i hook it up i hear a rumbling sound like thunder,i try different cable,and mixer and i still hear the sound.any know whats the problem?

The phantom power is 48 VDC measured between pin1 and the pin2, 3.;is the phantom power on and are you using mic inputs not line, the mic cable is a xlr to xlr cable the attached is about phantom power. Always by from established sound centers, they have help by phone, I like sweetwater as they stand behind evry u item they and the don't carry bargain price material. I lije CBI cables as they are american made with quality american cable as swiss connectors.
https://cdn.shopify.com/s/files/1/0247/3799/files/phantom_power_primer.pdf

ensure phantom power is on and use xlr to xlr cable to connect to mixer. ensure that the channel is set tro mic and not line input. refer to mixer manual for more info.

These things use Phantom Power, from your mixer. If it HAS it.
If not, now you know, get an external supply ($$!).
Peace-

If this is a condenser micrphone it will require Phantom Power from the mixer you are trying to use it with. If Phantom Power is provided, check the cable to ensure proper wiring.

Condenser microphones require Phantom Power from and external source, such as a good mixer. Make sure your mixer has it available and it is turned on. Then make sure you have a good and properly wired mic cable. If these suggestions do not help I would contact the manufaturer or retailer where the mic was purchased. Take the mic to a music store and ask yhem to hook it up to see if it will work.

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

From the Micropower PS400 product description it states:

"routes the microphone signal to a mixer or a microphone preamplifier."

• these is just a phantom power supply.


One reason your former setup is OK , is that

tascam m-50 is a mixer preamplifier.

• phantom power supply is just a part of the mic preamp of the mixer

to power up your mxl 990 condenser mic


• What you may need is something like these:

X2u XLR to USB Signal Adapter

It is likely you do not have the levels set correctly and are over driving the mixer. Reduce the trim settings using the PFL buttons and monitor the level indicators to insure you are not clipping.

With a condenser mic you CANNOT have any speaker in the room that the mic can hear of course. These mics are so sensitive. Your mixer and monitor speakers and recording will be in a separate room from the soundproof studio typically.

To monitor the system anywhere in the same room as the mic you MUST use headphones that do NOT leak sound or you will get feedback and distortion.

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

The MXL 990s requires 48 volts to operate. If your mixer does not have a phantom power option, you will need to purchase a microphone pre-amplifier with phantom power to interface the microphone to your mixer.