29 Mar
2010
29 Mar
'10
7:55 a.m.
Excerpts from James Stone's message of 2010-03-29 09:47:21 +0200:
Interesting... But apparently this is not uncommon -
see:
http://www.tomshardware.co.uk/forum/41809-32-thought-behringer-clue
Seems. It has been designed primarily with behringer's measurement mic
in mind. Not reallly an appropriate mic amp/eq for a high end mic.
On 29/03/2010, Brent Busby <brent(a)keycorner.org> wrote:
> I was noticing the Behringer DEQ2496 spectrum analyzer / EQ has a XLR
> input for a mic with flat EQ to be connected for room analysis, and the
> mic input does have phantom power supplied.
>
> However, it says +15-volt phantom power. Fifteen volts? Isn't phantom
> power normally 48 volts? I was hoping to use an Earthworks TC30K mic
> with it, since I have two of them, and they are basically flat out to
> beyond the human audio range, but they say they require 48-volts at
> 10mA. Where do you get 15-volt phantom power?
>
> --
> + Brent A. Busby + "We've all heard that a million monkeys
> + UNIX Systems Admin + banging on a million typewriters will
> + University of Chicago + eventually reproduce the entire works of
> + Physical Sciences Div. + Shakespeare. Now, thanks to the Internet,
> + James Franck Institute + we know this is not true." -Robert Wilensky
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Also, the real provided voltage might be different from device to
device. I did measure an Allan and Heath desk and some digi-something
and they behaved quite differently. The digi provided the voltage
immediately after turning it on and quite exactly what you'd expect
while the a&h took a few minutes to reach the 48V and it climbed up
further. Notice that this was measured without any load, simply with a
voltmeter, so the reality might look different. However, I also doubt
that 2V off mean a lot to mics.