Sound Balance acoustic wall in dark grey, 1 piece. Absorbs sound, optimising the acoustics in open-plan offices. Acoustic efficiency: sound absorption class B, sound absorption coefficient αw = 0.85 (sound absorption coefficient αw as determined by DIN EN ISO 11654), tested and certified by Müller-BBM, an independent institution for acoustic assessment. With a base made of matt anodised aluminium, the wall is simple to position as required and stands securely. The wall is 1000x1800x60 mm in size. With an easy-care fabric surface that can also be used as a pinboard. Thanks to the inner metal plate, the SIGEL magnetic accessories can be used with the acoustic walls. In combination with other colours and sizes, the acoustic wall is ideal for structuring floor space or creating different zones within an office.