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Phantom power and a TS cable

This seems like a very simple question but I haven't found a conclusive answer. I have an audio interface with those Neutrik combination XLR/TRS/TS jacks. I need to have phantom power on and I need to record from an unbalanced line-level source. I will send that unbalanced source into one of those Neutrik jacks with a TS cable.

My question is: will the phantom power conduct onto that cable? If it does, will it cause a problem with that unbalanced line-level source?

Comments

Profile picture for user hueseph

hueseph Tue, 06/08/2010 - 15:57

bouldersound, post: 349893 wrote: It's unlikely phantom is being fed to the 1/4" jack.

+1

But, I have to ask. What in the world are you trying to feed phantom power with a T/S jack? Is this for a D.I.? If so, most D.I.s have XLR inputs.

carburetor Tue, 06/08/2010 - 16:26

hueseph, post: 349894 wrote: +1

But, I have to ask. What in the world are you trying to feed phantom power with a T/S jack? Is this for a D.I.? If so, most D.I.s have XLR inputs.

I need the phantom power for a condenser mic that I'll be plugging into the other input; I don't need it for the line input but this interface just has one switch for both inputs (it's the M-Audio Fasttrack Pro).

So if both of you guys are pretty sure about this, I'll feel a lot safer testing it. :smile: I appreciate your input.

Profile picture for user Boswell

Boswell Wed, 06/09/2010 - 03:14

In any respectable design of pre-amp, Phantom Power is only ever applied to the XLR pins 2 and 3 of a combo connector. The TS/TRS jack does not have PP on it, so you are safe to use it for your line input device.

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