The organs have 66 voices and consist of 4743 pipes (from 11 millimeters to 10 meters high), including 183 Spanish trumpet resonators. The whole instrument with a height of 10 m weighs 36 tons. The game console is equipped with four handheld keyboards and a footswitch. The organs have a mechanical trestle and four blowers delivering 80 m 3 of air per minute.