I have one 10 foot pair of Monster Cable Sigma Retro Gold speaker cables for sale. Excellent condition, and stereo signals were always run the same direction.
I bought these brand new from a certified dealer in 2008 or 2009, and they will come with the original aluminum case and velvet bag, and associated paperwork.
These have been authenticated by Monster. I will provide the email confirming this if requested, which also has their contact information.
These listed for $2500 per 10 ft. pair from Monster. I will sell these for $975, PayPal add 2.9%, buyer pays a flat rate of $30 toward shipping cost.
Search Stereophile magazine, equipment reviewer Brian Damkroger for detailed information about these excellent sounding cables.
In the photos you can see some pin terminators clasped to the spades because I had been using one of these pairs to power some Yamaha NS1000 M speakers that had pin termination.
These photos are from a computer screen because my sound system is currently in storage.
Email with questions/offers. Dan