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Re: [ARSCLIST] Stereo of recording of oral histories ?
At 10:12 PM 1/7/2006, Steven wrote:
How did you go from the XLR outputs (I assume the mikes had those)
to the phone-plug or RCA-plug inputs of the recorders...particularly
given the different impedances?
The wiring is different in each case.
The Audio Technica AT-822 runs off a single, internal AA cell which
is one of the joys and why I decided to purchase a second. In this
case, it comes with an approx 1 m XLR to 1/8" stereo phone plug that
mates with the MD recorder. The AT-822 while using an XLR is an
unbalanced mic with pin 2 left and pin 3 right and 1 ground.
When I decided to use the Sennheiser MD-421U, I took a headphone
extension cable with 1/8" stereo plugs (which I keep a few of in
stock for just such purposes) cut it to about 2 m and put a female
XLR on it, wiring pins 1 and 3 to the shield and pin 2 to the tip and
ring so the mic would feed both channels.
When I used the AKG C-451s or the Sennheiser MKH-416T short shotguns,
I used a battery box that I made in a small aluminum enclosure. It
has two XLR females on it and four RCA jacks on it, two for each mic
so that I didn't need Y cords to feed two recorders for one mic. I
use standard pre-made dual RCA to 1/8" stereo phone cables from the
box to the recorder and standard XLR-XLR mic cables between the mics
and the battery box. The battery box uses 8 AA cells and has a
centre-off toggle switch that provides standard 12 V T powering for
the MKH-416Ts and in the other position 12 V phantom powering which
is fine for most AKG mics, but not for Neumann mics.
For other applications where 48 V phantom is available, I made inline
in Switchcraft S3FM barrels 48 V phantom to 12 V adapters to power
the Sennheiser short shotguns off my Mackie 1604 VLZ or my Spirit
As you can see, all of the options other than the Sennheiser mono
MD-421U and the Audio Technica stereo AT-822 require additional
hardware between the recorder and the mic which was what I was trying
to avoid with the MD-421U and why I bought a second AT-822.
I usually carry at least one spare cable of each type in addition to
all the ones needed to assemble the complete kit(s).
Richard L. Hess richard@xxxxxxxxxxxxxxx
Aurora, Ontario, Canada http://www.richardhess.com/
Detailed contact information: http://www.richardhess.com/tape/contact.htm