Radial Engineering Radial R15DC-UNIVERSAL PSU 15VDC - 100-240V Switching for Radial products, International (NEW 2020). Part of our AV Components range (audio accessories), supplied through AV Distribution, an authorised South African distributor for professional audio, video and staging equipment. Available to order -- contact us for lead time. Contact our team if you need help confirming compatibility with your existing setup.