These portable acoustical panels are the perfect addition as a rear sound absorbing wall behind any Drum Shield.. Sound Traps will absorb the sound of the drums before it can be reflected by the DrumPerfect Drum Shields resulting in a lower stage volume and the ultimate drum sound. Sound Trap consists of two 2 foot wide panels hinged in the middle. A 2-Pak is 8 linear feet wide. Used with home studio, acoustic panel, acoustic panels, drum noise reduction, sound panel, sound panels, sound reduction, sound absorption, noise reduction, drumming