Abstract: A loud speaker system of simple, compact and economical design is provided, using a minimum of space and being suitable for exact corner placement. The loud speaker system provides spacious, room filling sound, and excellent stereo imagery. Its design concept uses the listening room walls to extend system frequency response, wide dispersion, and stereo imaging. The loud speaker system functions well over substantially the complete sound spectrum, despite the fact that its triangular-shaped enclosure is provided with only a single, relatively small, speaker on each of its vertically disposed panels.