Les Davis Audio - Entropic Blocks - Box of FourConstrained Layer Damping that works. Refined Second Generation Technology for enhanced vibration damping and isolation. Compared to LDA pads, blocks add two 1 mm thick layers of aluminum, an internal layer of maple, and seven 3D2 7 layer pads for a total of 52 layers. A future generation will substitute an eight layer 3D2 on the top of an Entropic for 53 layers Blocks are beneficial when placed under amplifiers, speaker stands, and both digital and