This arch-shaped frame, with a radius of 4.57 m, consists of eight aluminium sections. Each section, with a unit weight of 8 kg, is composed of a triangular structure made of 10 mm diameter tubes. The ends are fixed on two metal hinges (of unit weight of 50 kg) to ballast the arch. Metal bars settle on either side of the hinges in order to increase stability and bracing can be set up with straps.
18 microphone stands allow the positioning of the sensors along the arch, which is graduated on the whole half-perimeter.
Contact: Joël Lelong