A Tombstone in the Living room????

Plane Old Joe- I want to start by saying that I have no idea how this product sounds, and that I hope that this product works for you. However, I have to say (IMO) that the description you quoted makes some the "creation science" arguements I have read seem downright plausible. It sounds like someone let the marketing department loose with a new ager and an electricians handbook. I don't know anything about acoustic treatment and shelving, but I know enough to recognize pseudo-scientific BS when I see it. Just my $0.02.

Just a remark from a latecomer in the Tombstones discussion. Much of the junk found in graveyards (RIP)are MARBLE and IMO, marble does NOT work the same way as marble --- granite is invariably better, especially under heavy components eg, power amps, or equipment that's by nature ultra sensitive to vibration (eg, TT). I use granite for both. Marble sounded muddled, worse than mdf, on my system.

I find that stones are OK to very good if placed under turntables or speakers, or under equipment racks, but are not good as shelves for CDPs, DACs, Preamps or Amps. They all "ping" to some degree and you can hear it with electronic components, and they also store energy and release it slowly thereby creating a smearing of detail. The stones all sound different, and different marble sounds different depending on the level of impurity (more impurity sounds better). Thick acrylic sounds better than most stone, but suffers much of the same problem. Maple Butchers Block is better again, but being picky, images are enlarged and flattened, leading edges are slowed (as Brulee says), and there is a slight lack of presence (related to the flattening of images) - but if stone is 5 out of ten, then Maple is 8 out of ten. But do try stones under your speakers, particularly if you have a wooden floor - but granite is probably the worst sounding of them - others like soapstone, impure marble or sandstone sound better.