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

kdross
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Why would a preamp output to amp input use a male/male?
Standard connection would be a male to female. 
I’m no techie but I believe XLR cables are purposely made with a male on one end and female on the other. Check the labeling on your equipment, output on one component should go to input on the other. It may sound silly, but it’s an easy mistake to make. The cables are made to support that format. Classe Audio equipment is very clearly marked. Be sure to check carefully.