The Bartók Béla Concert Hall's pipe organ, with its 92 registers and 5 manuals, was inaugurated in spring 2006. It was built by two companies specialising in organ construction: Orgelbau-Mühlhausen in Germany and Orgonaépítő Manufaktúra in the Hungarian city of Pécs. The concert organ's largest components were installed during the construction phase of the hall. Work was still ongoing on intonation and the built-in air-conditioning system behind the 92 giant pipes visible to the audience during the inauguration of the hall.