Quiklok WS540 Heavy Duty T Stand for Speaker Cabinets This stand was designed for heavy speaker cabinets including trapezoidal designs. It has a 300 lb (136 kg) total weight capacity. Features include 8 different height adjustment positions, and solid rubber rest pads that hold speaker cabinets firmly in place. Stands can be stacked for additional height and speaker cabinets can be stacked also. The WS540 folds down to convenient "T" for easy transport.