I bought anti vibration pads which are placed under Washing Machines to stop vibrations going through to the floor below. Placed an Auralex Gramma on top of that. Also tried placing a granite slab on top of the auralex. Both do the trick, but the I prefer the sound without the granite. Granite is a bit harsh and cuts bass short - feels like drums or piano notes are bing cut and not going through to full extension.