The Monoblox rear-projection surface belongs to AV Stumpfl’s monoblox series and is designed for a 4:3 aspect ratio. It has an overall size of 366 by 274 cm and a usable projection area of 346 by 254 cm. The surface uses the R5 gain specification and is supplied separately from the frame and stand. It is intended for rear-projection applications and has a net weight of 4.7 kg.