This is also suitable for other manufacturers amplifiers Each shelf is a triple, constrained layer damped sandwich consisting of a top plate of Kerrock® and a bottom layer of compressed high-density MDF, joined by a thin, non-resonant layer of sticky, black, highly viscous bitumen for optimal resonance control and mechanical damping. Kerrock® is a non-porous, homogeneous material, composed of one-third acrylic resin (also known as polymethyl methacrylate or PMMA), and two-thirds natural minerals. The sandwich construction dissipates vibration by absorbing kinetic energy and converting it into low-grade frictional heat effectively and harmlessly. Because of its high molecular density, the Bitumen layer has energy-absorbing properties roughly equivalent to adding an MDF layer of three times its thickness. The differences in thickness and resonant characteristics of the three layers ensure audibly superior damping of vibration. The Gryphon StandArt shelf is specifically designed as a dedicated isolation platform for the most vibration-sensitive components (turntables, tube electronics, CD players, etc.) to quash micro-vibrations from sensitive audio and video components, enhancing the performance of even the finest home entertainment systems in such crucial areas as image focus, spatial definition, bass clarity and dynamics.