Phantom Power and dynamic mics...

R

Rockr56

New member
I have an AudioBuddy with phantom to both channels at once. If I use a condenser on Ch 1 and a dynamic on Ch 2 will the phantom power be harmful to the dynamic mic? Thanks.
 
Nope.

Phantom away.

If you have a ribbon mic or something of THAT nature, be careful of the phantom power, but for a normal dynamic, you're fine.
 
"Most mics use a transformer as the output to the board preamp. A transformer won't pass DC. That's how phantom power works; they put +48 volts DC on pin 2 and 3 (relative to ground), and then the transformer stops it from going any further. But now they have that voltage at the mic and they can tap off of it to power the capsule and the electronics. Can it hurt a dynamic mic? Yes under a couple of conditions.

It could damage a mic if one side of the transformer or the cable is shorted to ground, or the connector doesn't make contact with both signal pins at the same time. For the most part, it shouldn't be a problem, but it's always a good idea (whenever possible) to turn off phantom power before connecting or disconnecting ANY mic.

Ribbon mics are most suceptable to phantom power since the ribbon acts like a fuse, and it will simply break or vaporize, but the transformer will usually offer some safety, even there."

quote from Harvey Gerst
https://homerecording.com/bbs/showthread.php?s=&threadid=27071&highlight=phantom+damage+dynamic
 
Thanks Gidge and H2oskiphil! Gidge thanks for digging that up for me. Next time I'll do the Search. I promise. :)
 
One other note. Some people have done clever measuring things and reckon the Audio Buddy isn't a good phantom power supply, that it falls something like 12V short depending on what you've got plugged in. I don't know exactly how bad this may affect stuff but the clever people who told me said it wasn't good.
 
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