I'm _very_ seriously considering building an "extension body" for our Tetramic, since the ppa's
annoy me intensely. This would be a metal tube of normal mic diameter (so that standard clamps can
be used) with a nose cone into which the Tetramic would plug (and be clamped somehow for additional
support). With a sufficiently smooth flaring on the nose cone I don't anticipate having to
re-measure the Tetramic. The circuitry of the ppa's would be replaced with preamps (perhaps with
switched gain) in the tube to bring the sensitivity up to SPS200 levels - and the output plug would
be the same as on the SPS200 thus ensuring interoperability. All this, of course, presupposes I can
find the time to do it!
Dave
On 17/04/2011 22:59, Fons Adriaensen wrote:
On Sun, Apr 17, 2011 at 05:44:08PM -0400, Jascha Narveson wrote:
I was using the 6-foot extension cable yesterday. I didn't try it today, so I
can't comment on whether swapping out the cable today affected the RFI, or if
was just a different day and wouldn't've happened in any case.
RF interference seems to be a recurrent problem with the Tetramic.
I've experienced it on many occasions, and almost always leaving
out the extension cable has removed or at least reduced the
interference. But it leaves you with the four PPAs and four
standard mic cables gaffer-taped to the mic stand - not a view
most concert audiences do appreciate.
I've been considering to modify the mic to have a short but more
solid and better screened fixed cable terminating in a full-size
6-pin XLR, instead of the mini-xlr and the all too delicate
extension and breakout cables.
Ciao,
--
These are my own views and may or may not be shared by my employer
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