TOPAKUSTIK® – Planks, type 29/3 M in many different shades of grey were chosen to line the walls for some of the auditorium/lecture theatres in this new development. Speech intelligibility, acoustic performance and comfort as well as a beautiful finish were all on the list of requirements for the prestigious Project in the Abercrombie Precinct of Sidney. Topakustik was able to meet and exceed these needs, and the result was extremely effective.