@yogiboy I plan to suspend the cables from the ceiling with "spider string," a special nylon made from free-range, baby spiders which nest near the famous Easter Island statues. Apparently, spider string provides 87.3% better isolation than cable risers, while keeping the floor clear. I need the floor uncluttered so that my specially equipped Roomba can roam the floor vacuuming up the dust which dampens lower register harmonics.