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I want to know if I can convert a 48V DC power adapter that I have at home to use it as phantom power for my condenser microphone.

I only want to add some sockets that can support a microphone.

Just wanted to know if it is possible at all.

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    \$\begingroup\$ Is it possible? -> yes \$\endgroup\$ – user253751 Mar 1 at 2:30
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    \$\begingroup\$ I concur. It is possible. \$\endgroup\$ – K H Mar 1 at 2:34
  • \$\begingroup\$ @immibis and @K H Thanks for the answer. Any idea what should be the current output min & max. \$\endgroup\$ – Amit Ray Mar 1 at 2:37
  • \$\begingroup\$ @Amit Ray a very few mics I know of will draw close to 10mA, but the vast majority of single-capsule condenser mics won't draw more than 5mA. Which mic are you using? \$\endgroup\$ – Tyler Stone Mar 1 at 6:25
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    \$\begingroup\$ @SunnyskyguyEE75, on the mixer side, you're right -- I thought you were referring to the mics. Some mics can work as low as 12V, but some require 48V and all should tolerate 48V since it's by far the most common thing for mixers to supply. Any mic that did NOT work at 48V would be incompatible with the majority of audio equipment out there, and therefore would not sell, so no one does that even if it would be cheaper. \$\endgroup\$ – Nate S - Reinstate Monica Mar 7 at 18:18
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Yes. But. All 48 V supplies are not created equal. Switching power supplies usually are a poor choice, due to merely industrial levels of noise control.

Here is some background information:

https://en.wikipedia.org/wiki/Phantom_power

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  • \$\begingroup\$ I don't think switching power supplies are a problem per se. Most audio equipment manufactured in the last decade or so is using switching power supplies at this point. However, you're quite right that a random 48V supply out of the junk drawer probably wouldn't be appropriate -- A low noise supply, either linear or switching, would be needed. \$\endgroup\$ – Nate S - Reinstate Monica Mar 7 at 1:01

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