The Primacoustic FullTrap is a highly effective bass trap that combines a diaphragmatic resonator, a full-size acoustic panel, and a sealed enclosure to provide 3-way absorption throughout the full frequency spectrum. This unique design begins with a front-mounted 24"x48" – 3" thick Broadway panel made from 6lb per cubic foot high-density glass wool fiber. This effectively absorbs frequencies down to 125Hz and extends below 100Hz. Behind the panel, a closed air space takes full advantage of quarter-wavelength principles to further reinforce low frequency absorption in this critical bass region.