Pro Audio Engineering Kx33 Low-RFI 14V 4A Power Supply Innovative switching topology to minimize RF interference and optimize efficiency. Extensive input and output filtering to ensure absolute minimum conducted and radiated RF. DC output is nominally 14V at 4A continuous. Less than a pound weight including AC cord to maximize portability. For full specifications and test results: https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/