[Top] [All Lists]

1. Re: pressure build-up ring

Subject: 1. Re: pressure build-up ring
From: "Walter Knapp" waltknapp
Date: Wed Nov 12, 2008 8:48 am ((PST))
Posted by: "Wil Hershberger"
> Yes, Walt you told me about the screw and the potential for O-ring
> damage.
> Do you have a photo of exactly how far forward the mics should be to
> take maximum advantage of the PZM coupling?

What you want is the diaphragm on the same plane as the housing face
(boundary). The idea is to eliminate the reflected wave from the pickup.
  The diaphragm of the MKH20 is pretty much even with the front end of
the housing body.  So, I place the housing flush with the face.

There's a photo of the mic in position in the mod SASS page:

BTW, the boundary effect should give you about 4db increased signal for
the mic.  At least that's the figure quoted.  I've forgotten what the
figure for the pressure ring is, but I believe it's similar.


<Prev in Thread] Current Thread [Next in Thread>
  • 1. Re: pressure build-up ring, Walter Knapp <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU