The PS-20 Power Supply from Telex is a versatile power supply that can be used for installed applications. The slim chassis can be mounted in a standard 19" equipment rack for convenience and versatility. The unit features an XLR program input, four XLR RTS primary outputs, and two 1/4" outputs on the rear panel, and an XLR RTS monitor output on the front panel. A small speaker on the front panel also provides monitoring functionality.