A general coupled dynamic model of the isolation system is established. which is composed of isolation object. nonlinear isolators and flexible foundation. By transforming the system dynamic equation into an expression of initial value problem of differential equation. https://www.diegojavierfares.com/amazing-price-Kicker-48CDF104-Comp-10-Down-Firing-Loaded-Subwoofer-Enclosure-special-find/