I have been using the Sistrum platforms under every piece of my equipment,including my speakers for the last 2yrs.They simply work!Every aspect and every positive audio adjective need be applied.I installed a 6 shelf Sistrum rack when they first became available 17 months ago,again everything got better, not just different.You guys must also hear the power cords as well as speaker cable and interconnects.The micro-bearing around the final shield seems to to take these cables to another level of lower noise and greater retrival.The attributes of Sistrum grounding was designed thru out their new mono-bloc amps as well..Again everything got quieter,faster ,blacker and OH so much more dynamic.The Coulomb Law applies to all these works.This is a continuim by design not just guess work.When you line up all these products everything is better. And you just know its correct..I loaned a friend one of my unused Sistrum Platforms to use under his Conrad amp.He said it was like he had aquired a whole new amp,so he bought it from me.Soon after he bought platforms to put under his Thiels.He said there was again just as much improvement ..These Sistrum products will never be retired.All keepers.