andy baxter wrote:
P.S. Having written this, I thought I'd check if
something like this
exists already. I found these two pages:
http://www.blue-room.org.uk/wiki/Splitters
http://www.blue-room.org.uk/wiki/Phantom_Power
which suggest that you can remove phantom power from a cable using
something called a transformer splitter.
that's not a feature, it's a bug :)
which is why all professional stage splitting systems must provide their
own phantom power, because the mixer's 48v won't make it across a
transformer. in a way, it's exactly the type of device you suggested: it
passes ac, but is dc-decoupled.