Electrical installations in buildings are usually carried out expertly, but at the minimum expense. This means that the cables from the fuse box usually pass through a number of junction boxes and terminals before reaching the sockets. Each terminal means additional contact resistance and additional load from other appliances in the room. This leads to losses and disturbances in the power supply. Ideally, there should be a separate cable from the fuse box to the socket of the hi-fi system. The Referenz AC-2503M is perfect for this application. In addition to its large conductor cross-section of 3 x 2.5 mm², it has a shield which protects the components from electromagnetic interference from the fuse box onwards. NOTE: The cable may only be installed by a specialist!