[Frank Stearns]

(Scott Dorsey) writes:

Gary Eickmeier wrote:

My audio engineer friend who does most of the archival gigs in town uses the
50 cm omnis (DAP) and gets fantastic results. What is interesting is that
this would be a purely time of arrival kind of stereo and my MS would be
strictly intensity stereo, and both work well! I had thought that some
combination of the two approaches with some shorter spaced cardioids aimed
right and left would give the best compromise - the best of both - but I was
wrong.

If he's using the DPA 4006 omnis, you'll find that they aren't really very
omni. Add the balls onto them and they become even less omni, and that is
what gives you actual intensity stereo.

The M50, as traditionally used in the Decca tree, are even less omni.

Indeed. The higher frequency directionality adds an intensity component.

And the M50 response is rather peculiar; my understanding is that in part the
Decca tree technique was birthed to work around that odd response.

Once again, KM183s (or 183Ds) using 50 cm spacing, 120 degree splay, 20 degree
up-tilt, with the balls, is the most accurate imaging I've ever heard.

But, I'll still put a 17 cm ORTF pair on the same stick. This is handy to deal with
any room oddities, or to "reach in" if a little presence is needed. Because the
stick location is optimized for the omnis, the ORTF is actually "too close" and
would not be pleasant all by itself. But mixed in underneath it can lend a helping
hand when the 50 cm omnis reveal all too well problems with the room or the
players.

Frank
Mobile Audio
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