I removed the Lessloss Firewall for Loudspeakers (which were terrific) based on Jeff of Silversmith's recommendation for Fidelium speaker cables. I need to experiment with putting them back on, which the notion of ever crawling around speaker cables gives me a headache, backache, brain cramp, etc. But I will try them because I cannot understand the physics effect with or without them it; only the subjective aesthetic if auditory absorption by the appendages on the sides of my cranium -- or, stated differently, they will sound to my ears better or worse.