I have been using this Speaker Cable Audioquest Type 8
I have 4 Runs of 27ft per speaker.
See below
Robert

Fast, Dynamic and Powerful! Type 8 uses a carefully finessed combination of Long-Grain Copper (LGC) and extremely high purity Perfect-Surface Copper (PSC) conductors. All conductors are solid, which prevents strand interaction, a major source of distortion. Surface quality is critical because a conductor can be considered as a rail-guide for both the electric fields within a conductor, and for the magnetic fields outside the conductor. LGC has fewer oxides within the conducting material, less impurities, less grain boundaries, and definitively better performance. The astonishingly smooth and pure PSC further eliminates harshness and greatly increases clarity compared to OFHC, OCC, 8N and other coppers.
Audioquest cables are legendary in audiophile circles for their neutrality and resolution. For 28 years, Audioquest has worked tirelessly to achieve sonic neutrality in all their cables, regardless of price. Ensuring that music flows unchanged and uncolored requires removing the myriad distortions that occur when a signal flows through a cable. To accomplish this, Audioquest bypassed conventional cable design and focused their efforts on both the physical properties and sonic characteristics of the conductors and connectors, as well as every other material used in the creation of their cables. This unorthodox approach has led to a number of innovations, the most celebrated of which is the Dielectric Bias System (DBS), a revolutionary and patented system of simultaneously protecting the conductors from outside interference and reducing distortion within the cable.

Not Cheap worth every pENNY