Powershield Acoustic ASSA ABLOY acoustic doors insulate sound to reduce and control unwanted noise in commercial, industrial and public buildings. ASSA ABLOY acoustic doors are manufactured from steel, providing greater mass than other raw materials.Through extensive research our core materials and combinations have been developed to improve both insulation and stiffness. The Powershield Acoustic range can deliver different levels of sound reduction to suit individual room and building requirements. Visit ASSA ABLOY Opening Solutions Door Group homepage Encore - Powershield AcousticPowershield Encore is a high quality 37dB acoustic person… Sonata - Powershield AcousticPowershield Sonata is a high quality 28dB acoustic person… Quartet - Powershield AcousticPowershield Quartet is a very high performance 43dB acous… Symphony - Powershield AcousticPowershield Symphony is an extreme performance 45dB acous…