The AGS-FS1 consists of a group of wooden columns arranged in a compact configuration. The sound field in the room is very effectively improved by placing just one or two units. The FS1 usually comes in a set of 2 with left and right orientation. Very effective placements are diagonally behind the loudspeakers, laterally at the reflection points between loudspeakers and the listening area and/or diagonally behind the listening station. It is very effective both in rooms that are too steamed and in rooms that are too loud.