The S3 Isolation Base is a highly innovative design that eliminates noise, revealing a new level of musical performance. It is manufactured from seven different materials including a proprietary resonance control stage with billet machined aircraft aluminum trim and a new plinth construction that increases plinth mass by 7 pounds, an additional 16 percent over the previous S1 Isolation Base design. The new 51 lb S3 (1921 size) plinth construction is manufactured by laminating in a vacuum press alternating layers of high density fabric reinforced resin and non magnetic stainless steel plates on both sides of a decoupled mass energy dissipation core system. The very top skin of the S3 plinth is the same high quality scratch resistant surface layer used in the R3X Isolation Base providing an identical cosmetic match. The S3 also uses the same primary isolation stage of the reference level M3X2 model and thus provides exceptional performance and a great performance value.