[Harp-L] Impedance advice needed

["hazcon" <hazcon@xxxxxxxxxx>]

I don't have a regular band these days and only do the occasional 'sit in' 
or jam session,hence I usually just plug my *astatic into the PA.Trouble is 
these days some PA's don't have any imputs for the standard quarter inch 
jack plug.Can I just  buy an impedance converter that (for example) has a 
jack at one end and an XLR at the other and I'll be set to go?
             Main reason I ask is because in reading up on this stuff 
(makes my old brain ache) it seems that not all XLR's are the same in that 
the 'hot' pins can be different.
          How do I know that the impedance converters' XLR fitting will 
match the female end at the PA I happen to have to plug into?Or is this 
irrelevant?

TIA
Rick
in NZ
*Astatic biscuit ,CM, switchcraft female adapter to female quarter inch so 
can use a regular guitar cord.



This is the adapter I'm looking at

ATC6824

1/4" jack socket to XLR3 male, high to low impedance convertor. Transformer 
coupled