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Re: decent portable mic pre with optical out

Subject: Re: decent portable mic pre with optical out
From: "Greg Simmons" simmosonics
Date: Thu Nov 16, 2006 1:58 pm ((PST))
[Oryoki wrote: One limitation of the Hi-MD recorder is that it doesn't
provide 48V "phantom power" required by many pro mics. So, depending
on the mics you're using, you may need a separate battery box.]

You hit the nail on the head...

It's all well and good praising the HiMD's inputs and AD circuit, but
pointless if you want to use professional microphones with balanced
outputs and phantom power! The Rolls solves the power problem, but it
doesn't provide any way of converting the balanced signal to
unbalanced. This could be done by taking the signal across pins 2 and
3 of the XLR, and/or tying pin 3 to pin 1. Or better still, a good
transformer that can also provide appropriate impedance matching. But
that's getting expensive...

Another solution might be to choose a microphone that can provide a
minijack output and is self powered. A Rode NT4 might be a good
suggestion; a clever chameleon that can happily work in both
professional and consumer applications without compromise, and
requires no extra boxes.

- Greg Simmons




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