[Harp-L] Re: Shure 545 in a bullet shell

[Greg Heumann <greg@xxxxxxxxxxx>]

>
Hi, Dave -

I can't speak for the 545 directly. The easiest thing is to try it.  
If your PA only has XLR inputs the impedance will be low, and that  
means your mic has to play into a much bigger load - it will make  
sound but it could rob it of much of its tone. This is EXACTLY the  
same issue as an external volume control with the wrong value pot.  
The low input impedance of most PA's is about 50K ohms - pretty low.  
You would be far better off to connect to it through an impedance  
matching transformer. They're readily available and cheap. If your PA  
has 1/4" jack inputs they should be higher impedance and may just  
work fine for you.

/Greg
http://www.blowsmeaway.com

> From: "Dave Ferguson" <hoptowntiger@xxxxxxxxxxxxxx>
> Subject: [Harp-L] Shure 545 in a bullet shell
> <snip>
> Do any of you ever use this mic straight into the PA, and if so do you
> rewire it to low impedance or is it okay to keep it on HiZ straight  
> into the
> board?
>
> I may wire an impedance selection switch onto this baby anyway but  
> I'd love
> to get feedback on how others use this mic through the PA.