Re: [Harp-L] Tom Ball suggests a Shure SM-54 mic?

["Ralf K. Buschner" <r_buschner@xxxxxxxxxxx>]

Ron "Captron100" wrote:

>   3. A check on the Shure website showed 5 different discontinued 545
> models.  Model S has a switch.  All are dual impedence except the  model L,
> which is low Z.  The 545PE is not a pistol grip and it's frequency 
> response is shown as 50 to 50,000 c.p.s, instead of in Hz, as are the other
>  models.  What is "c.p.s"?

c.p.s. is an old abbreviation for "cycles per second" and means the same 
as "Hz" today does.

> I have an old PE56 which is working intermittently, cutting in  and out.
> It's been suggested that I simply replace it, perhaps  just buy a SM57 or
> SM58. 

Why not repairing it? 
The PE56 or 565 are the predecessors of the SM 58. The difference is, that 
those old mics "colour" your voice their own way. By the way: The PE-xx 
numbers have their equivalent in the "w/o PE Unidyne series", when you simply 
add a 5 to the PE-xx numbers, i.e. PE-54 -> 545, PE 56 -> 565.

> Why is Low Z  better than than  high Z, which I assume is the new 
> standard. Is it something other  than the lengths of wire u can use?

No, the reason for inventing low-Z mics was indeed the usable length of cable. 

cu,
Ralf