Soundac® enclosures Description ® Soundac enclosures of ANR provide an exceptional quality of sound attenuation over a broad frequency range. The enclosures are assembled as modules from self-supporting panels. Each enclosure is produced individually, which offers a total solution to your acoustic requirements. Important aspects of each design are: accessibility material supply controls ventilation and heat outlet noise reduction carpentry, metalworking refrigerating machinery compressors aggregates pumps audio cabins The diversity of the enclosure in the production process is of the greatest importance. The design of the Soundac® enclosure is made to make the production process as efficient as possible. The Soundac® enclosure may also offer extra safety to the operating staff. Sound insulation The sound insulation or sound attenuation of the enclosure is the difference in sound level with or without an enclosure. The sound insulation of the panels under laboratory conditions always deviates because of: different sheet dimensions movable parts ventilation transfer by vibrations Acoustics & NoiseReduction BV - Celsiusstraat 26 - 1704 RW - Heerhugowaard tel. +31 (0)72 57 27 390 - fax +31 (0)72 57 21 256 - e-mail [email protected] - website www.anr.nl Bankrekeningnr. 67.57.82.775 - K.V.K. nr. 37100240 - BTW nr. 8103.71.315.B.01

Sound attenuation in dB Sound attenuation (dB) The Soundac enclosure is a standard construction with an outer layer of a single sheet of thermal galvanised steel and an inner layer of a single sheet of perforated thermal galvanised steel. The space between the layers is filled with a special sound absorbing mineral wool with a layer of black mineral fibre against the layer of perforated steel. Depending on the acoustic requirements extra steps can be taken: a multilayer setup enlarging the standard thickness adding of extra sound-absorbing sheets extra damping of ventilation by using special...