Condensor mic question

zachtheterrible · May 18, 2004

I've got this mic that has three wires. It says that there is the ground and output (obviously), but another wire says it has optional coupling. I know wut coupling is, but, I don't get it. It also says that it will respond to -5 db @ under 30 hz. Is there such a thing as negative hz?

Nigel Goodwin · May 18, 2004

zachtheterrible said:
I've got this mic that has three wires. It says that there is the ground and output (obviously), but another wire says it has optional coupling. I know wut coupling is, but, I don't get it. It also says that it will respond to -5 db @ under 30 hz. Is there such a thing as negative hz?

You can't have a negative frequency.

Condensor microphones often require a power supply - usually 48V for professional ones - your third connection could be power.

TillEulenspiegel · May 18, 2004

Nigel is correct, but the 48VDC is normally used in pro-audio mics.If what You have is just a little button with an small audio cable and a red wire , you can try a 9Vdc battery it should work fine. Radio Shack used to sell them.

olly_k · May 18, 2004

I think 1.5 / 3 volts max!!!

Condensor mic question

zachtheterrible

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Condensor mic question

zachtheterrible

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