Hi all,
I have a 9B-ST THX amp which I bought used.  The guy who sold it to me says the power cord he gave me is the original Bryston stock.  Is there a way to confirm it's a cord from Bryston vs. some cheapo PC power cord? 
There are markings on the cable with the name Hirakawa on it.   The cord ends I remember is rated at 10amps. 
TIA.