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Re: shure matching transformer

Subject: Re: shure matching transformer
From: "Rich Peet <>" <>
Date: Tue, 24 Dec 2002 04:19:12 -0000
The transformer will reduce the amps noise but not the mics internal 
noise.  In that I run a pair of me-62's with a MZ-R55 I will give the 
opionion that the mic noise is more of a concern than the amp noise 
but should not be disregarded. 

I decided against the matching transformer because I found a cheap 
and quality balanced line driver ic that also gives a 6 db gain.  It 
has the added advantage of plugging in on the recorder's unbalanced 
mic and because it converts to balanced also permits you to run up to 
400 ft of mic cable if you desire. Cost will come in at a fraction of 
two xformers.

This has made it up on the winter sound project list to #4.  I pray 
this to be done by 2/15 or I will have to postpone spring this 
comming year.  I will post a comment on it when I am done as to if I 
am successful and how it was done.  Cost will come in at a fraction 
of two xformers.  I also welcome Walt to complete and post a 
prototype for consumer minidisc users of this.  I know he has a few 
of these chips to play with as well.

Rich Peet



--- In  "David Kuhn 
<>" <> wrote:
> --- In  "oryoki2000" <> 
> wrote:
> > A good US source for the Shure A96F 
> > transformer is www.bhphotovideo.com  
> > Price $36.  I ordered through their
> > web site and received prompt delivery.
> > The impedence match does increase the
> > recording level quite noticeably when
> > using my Sennheiser mic.
> > --oryoki
> 
> Aloha Listeners,
> I'm looking at these transformers to use with my two Senn ME-62 
omni 
> mics, until I can afford some better mic's. I would also need a 
Mixer 
> (B&H suggests their AZCAM-3). 
> 
> Q: If the transformers boost gain (~6dB?), is inherent mic noise 
also 
> boosted? If so, what is the point, since I don't turn the gain up 
> past around 3/4 on the MZR-50, and can normalize in CEPro? 
> 
> Q: Do the transformers and mixer also introduce noise into the 
system?
> 
> Thanks and Aloha!
> David
> 
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> David Kuhn
> Terran Tours
> Koke'e, Kaua'i, Hawaii
>  
>  
> 808 335 3313
> Mail to PO Box 1018,
> Waimea 96796
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<



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