Handheld condensers???

Not to say they don't exist, but they're not that common and (generally) are more expensive and less useful than a handheld dynamic. What mics are they?

If they are dynamics, the y cable will be just fine for scratch vocals. For condensers, not so.

Otherwise, can you feed the mics into the FP10 and then take the outputs from it into your console? (i don't know the routing potential or I/O available on the FP10.)

Just some thoughts.

If it's a handheld along the lines of an ATM31A, it can also be powered by a 'AA' battery - if that's the case then the 'y' cable will work.

True. For that matter, as long as th Y split occurs between the powering and the console/interface inputs, he should be fine. A cheap phantom power box and a Y cable could be the cheap and dirty answer.

cheap and dirty answer.

Thanks, now I've got Slade's song "Cheap and Nasty Love" bouncing around in my head!

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Yes, but make sure that each cable and 'Y' is properly soldered. You don't want that phantom going anywhere in the chain but pin 2.

There shouldn't be phantom touching the Y.

It should go -

Mic -> Phantom Supply -> Y Cable -> Mixer/Interface.

Otherwise - yes.

Hang on...

What model is the Carvin?

If it has 1/4" line inputs you could plug the vox mic into channel one (or two) of the FP10 and run it's preamp output on the back to an input on the mixer - foregoing the need for a split.

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I bought a splitter though. Might as well try it both ways.

What does the PSM get it's feed from?

PSM is phantom power line-through. Whatever you plug into with activated phantom feeds the mic.

Who's wearing the PSM bodypack and what is being sent to their ears?