Thanks Jay, I appreciate the input! I had looked into the GAIA isolator series when I was looking at the other IsoAcoustic products. The N3's lined w/ No-Rez weigh 57# each, so I could get by with the III smallest versions. But at $400 for a speaker pair, it's not an option for me. The L8R-200 sub fixed isolators would work, & for $120 are a strong possibility.