Sorry for the !!, I need to get this running TodayIfPossible. And I'm
Way Out Of Town. Like Africa...
I have two Shure WL183's (Miniature Electric Condensers often used on
good body mike setups). I need to "run" them on an M-audio Transit
USB
inteface on a laptop to do an unusual on-location recording tomorrow=20
(After midnight today your time).=20
The WL183's have 3 output terminals:
1 Ground
2 Bias (+ 1.5 to 10 VDC) [shown as connected to a FET Drain]
3 Audio Signal [Shown as connected to FET Source]
..so they ususlly have an external power of, say, +5V or so.
The M-audio Transit USB is a 24 bit up-to-96KHz 2-channel interface
with
a 1/8" "Stereo" input connector. The manufacturer is not specific
about
the input configuration, other than to say "Can supply DC for
condenser
mikes". I measure +2.2VDC on each of the input terminals. It works OK
with a typical cheap 2-terminal electret mike.
So, HOW can I wire this up quickly??
?? Can I get away with grounding the "Source" (usually audio out) and
connecting the "Drain" to the Transit interface, like 2-terminal
cheap
electrets??
?? If I supply + bias externally, like a 9V battery, must I insert a
blocking Capacitor (Sorry for the dirty word..) in the signal path??
?? Any other suggestions??
I hope some of you have encountered this issue before and can suggest
or
point to information.=20
I gotta wire something up Real Soon.=20
THANKS!=20
Regards, Terry King ...On The Mediterranean in Carthage
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