Max SoundBlocks are thick cubes of open cell polyurethane anechoic foam cut to standard 6" or 8" thicknesses.   Custom thickness are also available for these anechoic wedge foam cuts.   These acoustic foam blocks are the ultimate for maximum sound absorption, ideal for sound testing booths, dyno rooms, strong industrial decibel level sound sources, and anechoic chamber builds.   Also ideal for bass traps in music room settings, the MAX SoundBlocks are thick soundproof foam wedges that deliver maximum levels of low bass absorption.