On 2014-06-21 3:54 PM, Paul Stamler wrote:
> Remarkably, I heard similar stories from the engineers at the Ravinia
> Festival about Neumann mics. They also went to C451s and some Shure
> SM81s, and the problem was solved. The SM81s and C451s had far fewer
> problems with humidity than the KM 84s.
That is interesting as Neumann has published on the subject and also
developed their double wound (in opposing directions) spiral-shielded
mic cable (called double Reussen shielding, I believe). Here, the cable
is called "Gotham" cable after Gotham Audio, for a long time the sole
importer of Neumann mics into the USA. I had thought it was Neumann
cable, but perhaps it was Gotham. It is still available. I still have a
pair of 50' and some 10' cables that I bought in the 1970s and they are
still performing well (though I don't use them that often).
Although this was not the article I recall, it seems interesting and
talks about Pin 1 and Pin 0 (the shell) and I do recall some of that
discussion from the earlier paper.
Part of what they published (IIRC) was relating to the shield ground and
pin one. I do not recall exactly what they recommended, but I do think
that it was an early indicator of a pin one problem.
I have yet to have an RF problem with my KMS-105 or TLM-103, but neither
of those were hung in the church, used on the floor.
In fact, the only mics that ever gave me a problem here in Aurora were
the ATM10a's, which, also, coincidentally were the least expensive
condenser mics I ever bought.
To fill out the list, although none hung in the church, all were used
there without any RFI issues: Rode NT5, Rode S1, Sennheiser MKH416T with
homemade P48-T12 adapters, and dynamic Shure PG58, SM58, and EV ND767.
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada 647 479 2800
Quality tape transfers -- even from hard-to-play tapes.