Re: [Sursound] Soundfield mic disintegrating foam

2017-10-26 Thread Rudy Chalupa 
Michael,


I've had to "de-foam" a couple of Mk IVs in the last few years. Remove the four 
screws holding the cage and you can get most of the foam out while safely 
remote from the capsules. I took the foam out of the leather case; I just place 
the microphone in a USPS Priority Mail padded envelope which is a conveniently 
perfect fit. The microphone seems to do acceptably well wind-wise without the 
foam. though I imagine it's attracting significantly more dust. I have yet to 
find a source of acoustic foam that's thin enough to replace the original.


The foam in the cases in both mikes I've serviced has held up well, so I can't 
advise on that. Sorry!


Cordially,


Rudy Chalupa
Pleiades Audio + Electronics



-Original Message-
From: Michael Dunn <m...@cantares.on.ca>
To: Surround Sound discussion group <sursound@music.vt.edu>
Sent: Thu, Oct 26, 2017 11:24 am
Subject: [Sursound] Soundfield mic disintegrating foam

The foam in my MkIV “suitcase” has turned to horrid mush. Argh. Any ideas for 
dealing with it?  I am incredibly scared to open the mic lest I find foam gunk 
all over those beautiful capsules!!!   Michael  -- next part 
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Re: [Sursound] Soundfield mic disintegrating foam

2017-10-26 Thread Martin Leese 
Michael Dunn wrote:

> The foam in my MkIV ?suitcase? has turned to horrid mush. Argh. Any ideas
> for dealing with it?
>
> I am incredibly scared to open the mic lest I find foam gunk all over those
> beautiful capsules!!!

Quantum physics notwithstanding, either there
is foam gunk over the capsules or there is not.
Leaving the mic closed will not change the
result when you finally do so.  Also,the longer
you leave gunk in there (if any) then the more
time is has to glue itself onto the capsules.

Regards,
Martin
-- 
Martin J Leese
E-mail: martin.leese  stanfordalumni.org
Web: http://members.tripod.com/martin_leese/
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Re: [Sursound] Soundfield mic disintegrating foam

2017-10-26 Thread Dave Malham 
I'm afraid that happened to the foam inside our mkIII (bought in 1980-ish)
and the bits stuck on the diaphragm of one of the capsules and it was never
the same again. Couldn't get a replacement capsule (or capsules) as those
ones weren't made any more :-( I personal would advise opening up the mic
and if necessary removing any internal foam out to try and avoid this. The
first I knew about it was the foam in the actual mic box going which
happened over just a few weeks .

 Dave

On 26 October 2017 at 16:23, Michael Dunn  wrote:

> The foam in my MkIV “suitcase” has turned to horrid mush. Argh. Any ideas
> for dealing with it?
>
>
>
> I am incredibly scared to open the mic lest I find foam gunk all over
> those beautiful capsules!!!
>
>
>
> Michael
>
>
>
>
>
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>



-- 

As of 1st October 2012, I have retired from the University.

These are my own views and may or may not be shared by the University

Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK

'Ambisonics - Component Imaging for Audio'
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[Sursound] Soundfield mic disintegrating foam

2017-10-26 Thread Michael Dunn 
The foam in my MkIV “suitcase” has turned to horrid mush. Argh. Any ideas for 
dealing with it? 

 

I am incredibly scared to open the mic lest I find foam gunk all over those 
beautiful capsules!!!  

 

Michael

 

 

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