I have been very interested in their new GIIA (sp ?). My speakers sit on a suspended wood floor of poor quality which has had a very negative impact on sound, particularly bass response B&W 800D. These products decouple speaker from floor and help to eliminate floor impact. Similar to townsend audio seismic platforms. Unfortunately they are limited to 225 lbs and mine weigh 275. I am now using a phenolic crystal 5/8" thick square piece under each spike with significant benefit.
