http://www.isoacoustics.com/products/gaia-series/ I happened to know GAIA isolators through the thread here. Best Hardware Acquisition of 2018 After reading many favorable reviews, I placed an order for Gaia II for my Lansche Audio 4.1. Actually my speaker weighs slightly over the limit of Gaia II (60kg vs 54kg). I got the product today and could place upon the bottom of speakers without much difficulty. After warming up my tube amplifies, I got shocked to find out that Gaia changed the sound of speaker drastically. The soundstage got more transparent with better focus and details. The bass got tighter. 600$ for Gaia had made more than 3,000$ improvement over my system. The only catch is that it may do some harm if your sound is already on the bright side. I will keep listening to music for a while before forming long term impression.