This is a DIY pair of excellent Canare 4S11 Star Quad cables (Canare's best), a staple in pro audio and a bargain for the quality offered. Very nice Viborg copper spades on one end, gold plated copper bananas on the other.
Pre-assembled Canare 4S11 cables like this typically sell for $125-200/pr. I'm selling mine, as-new, for my cost of the parts.

These are four 14 ga. conductor cables, cross connected as recommended by Canare for single wire use, totaling 11 ga. per leg.
Cross connection substantially reduces inductance and noise pickup.
These are easily reconfigured for use as a biwire cable simply by adding 2 additional connectors on one end.
They are as new, with about 50 hours use. They probably would benefit from additional breakin.
Thanks for having a look.