The Primacoustic MaxTrap is a highly effective bass trap that combines a diaphragmatic resonator with a full-size acoustic panel in a sealed enclosure to provide 3-way absorption throughout the full frequency spectrum. This unique design begins with a 3" thick front-mounted 24"x48" Broadway panel made from 6lb per cubic foot high-density glass wool fiber. This effectively absorbs frequencies down to 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.