HRS Vortex 150 Set of 4Most isolation products work from the outside in pads, cones, platforms that try to catch vibration before it reaches your component. The HRS Vortex works from the chassis out. The Vortex is designed to be placed in direct contact with the chassis, not under existing component feet. HRS's research showed that a significant portion of resonance enters through the chassis surface itself not just through the rack. The Vortex addresses that. A patented