Where to get XLR male to male cable

I have a Classe Audio DR-8 amp and DR-5 pre amp.  I need a male to male XLR cable to connect them, but I cannot seem to find such a cable.  XLR female to male seems to be the only XLR cable I can find.  Where can I find a male to male XLR cable?  Looking to spend about $200-300 for the pair.  

Thanks,
Ken