On 6/20/2011 3:55 PM, Richards wrote:
> For example, not all, but many, microphones exhibit what is called
> "proximity effect." This is the tendency to produce a sound that has
> heavy bass or low frequency emphasis when you hold it very close,
> perhaps within 2 to 4 inches, to your mouth;
This is a characteristic of CARDIOID mics (one-directional) and
bi-directional (figure-8) mics. Omnidirectional (non-directional) mics
do NOT have proximity effect.
One of Electro-Voice's most important mic innovations was the
"Variable-D" microphone -- a directional mic that does NOT have
proximity effect. The first was the 666, also known as the "Buchannon
Hammer," because Al Kahn's partner, Lou Burroughs, demonstrated its
ruggedness by driving nails with it in presentations to broadcasters.
There was a PA version called the 664. After a few years, the design got
a bit sexier, resulting in the RE10, RE11, RE15, RE16, RE18, RE20, and
RE27. Shure jumped on board with their SM53 and SM54, and AKG with
their D202 and D224, but the EV mics are the only ones that succeeded in
the marketplace. The EV PL20 is an RE20 made for musicians.
73, Jim K9YC
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