Masterbuilt Signature

I have a pair of Masterbuilt speaker cables for sale. Masterbuilt has 4 levels of cables- Ultra, Signature, Standard and Purple Line. These are in the Signature line and they are 8 ft long and have spades on one end and banana plugs on the other. I used them in a bi-wire amp/speaker system I had. There are great sounding cables and I am sorry to see them go but newer amps have different binding posts. I also am selling (see other ad on this site) a pair of Standard speaker cables that was in the same set up. 
Master-Built cables are designed and fabricated by a subsidiary of Delphi Aerospace. These cables use Single Crystal Laboratory-grade materials such as solid core copper or ULTRA composite wire with aerospace shielding, Patent.Pending noise reduction technology, and German or Japanese high-purity plugs. We believe M-B cables have the least distortion or coloration of any cable available, cost-no-object. Reviewers agree! They are best used as a “system” without any other brands or types of wires in the system to dilute their sonic properties.