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Re: SASS (again)

Subject: Re: SASS (again)
From: "Rich Peet <>" <>
Date: Thu, 27 Feb 2003 03:48:31 -0000
Once again we are not that different.

The me-62 cap is so far down the tube to make it impossible to do a 
pzm.  Just the way the thing is and nothing more.

I find my handling noise on the sass more related to mic cables than 
the mic when the cable is where the sound comes from.  If that makes 
any sense and does not become redundant and obvious.

A mkh-110 is not that hard to rebuild in any shape you want. After 
all, it is just a simple two npn transistor and two transformer 
circuit.  Most of the components are just caps for rf isolation 
around the crystal.



--- In  Walter Knapp <> 
wrote:
> Rich Peet  wrote:
> 
> > The sass in stock configuration is a good ambience mic if you 
have a 
> > target with a good signal.
> > 
> > The upgrades talked about here for the sass are only important 
for 
> > faint signal recording.
> 
> I personally think that even with good signal it would annoy me a 
lot. 
> It's much more sensitive to handling noise than my modified SASS. 
It 
> should be ok mounted on a stand with the cables carefully bound in 
> place. But I found it very untrustworthy hand held.
> 
> Of course maybe I have a bad one. But it does sound ok when I can 
avoid 
> handling noise.
> 
> > a ME-62 can not be used in pzm configuration in a sass because of 
the 
> > side slots and should not be attempted.
> 
> In the SASS as I build it, those side slots would be sealed off 
from 
> sound by O-ring seals and 1/4" of delrin. I've not tried a ME-62, 
but a 
> MKH-40, which is both a cardioid when out free and has side slots 
works 
> quite well in the SASS.
> 
> > A MKH-110 can be disassembled and built into a sass and the 
switch 
> > rewired so that a choice can be made between the 110,  or the 
stock 
> > mics which are very nice and flat on louder signals and very wind 
> > resistant.
> 
> I agree, this could be done, using the same offset in the opposite 
> direction on the boundary surface. Might get a little fiddly 
producing 
> some protection for the diaphragm, And you would have to disconnect 
the 
> capsule from the electronics, making the seal mount in the back of 
the 
> boundary tricky. When taking apart the MKH110 watch out to not 
damage 
> the hair thickness capillary in the back of the capsule. That's 
> essential to it's frequency response according to a talk given by 
> Sennheiser. And, since you would be changing things in the middle 
of the 
> RF circuit, you might also run into trouble that way. RF circuits 
don't 
> tolerate dimensional changes well. At minimum you would have to 
figure 
> out the tuning process for the RF.
> 
> Personally I think it might be more sensible to redo Crown's 
circuits 
> and backplate and mount the MKH110 unmodified to have a hybrid. 
It's 
> less work. In either case it should be realized that this mod is 
not 
> reversible for the original mic housing, you have to bore holes 
through 
> the boundary surfaces. You would have to buy a new housing to 
reverse it.
> 
> > I don't think that Bob is the proper victim to test the rode mic 
on.  
> > We need someone who hits the trade shows to test drive this.
> 
> I agree, and I told him so. What we need is someone who can get 
review 
> samples. Beginners should try and stick with known stuff.
> 
> Walt
> 



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