Machina Dynamica Super Stiff Springs isolators (4) for heavy things

Super Stiff Springs 2” high, 1.5” OD uncompressed are low profile steel springs for heavy items like subwoofers, big amps, some speakers, heavy turntables. This listing is for four (4) Super Stiff Springs that will support with stability objects that are 75 to 120 lb, with the springs directly under the component, depending on the center of gravity. For components with a high center of gravity like tall speakers a 18x18” board under the speakers may be required to be able to arrange the springs in a wide pattern for stability. For lighter components 25-75 lb use our Baby Promethean Springs. Retail price of our springs $12 each.