Question about audio interfaces and phantom power

[LukWarm]

A little bit of a backstory here: I have a focusrite scarlett audio interface, and I have an XLR to audio jack adapter that I would use for my phone. I am trying to use my phone as an audio source to mix w/ my mic. The only issue is that I use a condenser microphone and thus it requires phantom power and you cannot turn it off for a specific XLR port. When I plug my phone in it does not recognize headphones unless the phantom power is turned off.

I was wondering if I could use an external phantom power injector for my microphone and if it would interfere with any other XLR ports on the interface, or the device itself. Thanks in advance

[Enderman]

I hope you didn't fry your phone's audio circuitry by plugging it into phantom power.

[LukWarm]

5 hours ago, Enderman said:

I hope you didn't fry your phone's audio circuitry by plugging it into phantom power.

It still works like it did before. No damage done that's noticeable at least

[unknownmiscreant]

You could probably just put some DC blocking caps inline with the signal wires to filter the phantom power. It will need to be fairly large to avoid cutting off bass signals. Go look for motor start capacitors. Although a simple high pass RC filter may be cheaper and better. But will loose a bit more signal amplitude.

 

It would require some soldering skills though.

 

Heres a good explanation of balanced signals and phantom power:

http://www.tangible-technology.com/power/Phantom_Power_connect.html

[anothertom]

To answer OP's original question, Yes you can use an external phantom power supply, and no it shouldn't affect the rest of the ports or the interface (as the output of the PSU shouldn't have phantom power applied to it).

[anothertom]

5 hours ago, unknownmiscreant said:

Heres a good explanation of balanced signals and phantom power:

http://www.tangible-technology.com/power/Phantom_Power_connect.html

That's a really bad explanation of how balanced signals work, and is wrong in quite a few places.