Auralex HoverDeck V2 - Drum Isolation Panels (Set of 2)Stages and traditional drum risers sympathetically vibrate (resonate) with the drums and or PA system. These resonances feed back to the drums and are then picked up by the mics. The Auralex HoverDeck v2 is specifically engineered to reduce coloration from floor resonance by decoupling the drum kit from the structure, resulting in a tighter, more pure sound for both studio and FOH. The HoverDeck v2 has a rugged MDF laminate core and web like ISO Puck