Quick Q, I live in a house on the second floor, the owner lives at the ground & first floor, he always complains about the sound and vibration, rumbling and rattling coming from my Subwoofer Definitive Technology SuperCube I. Now I will replace it with the Paradigm Defiance X15, double the size. Should I place it on two IsoAcoustics ISO-200Sub Subwoofer Isolation Stands