High power and versatility are the main features of this four channel amplifier. Its two pairs of channels and its pre output can be configured as you like, simply acting on the switches of its built-in module. VRx 4.300 sound can be perfected or customised by adding one or more Control Extensions: it has one pin socket for PC36, one for SM24 and two for PRM3 (one for every pair of channels).   VRx 4.300 EX Limited Edition EX release is provided with all compatible Extensions and a special balanced cable, ABS 450.   VRx 4.300 CS In its special Chrome Shadow finish, from where the acronym CS comes from, the VRx gains an even more “Hi-Tech” look and is shipped with the unique Audison ABS balanced signal transfer system. The included BTX 2 balanced/pre-amp module and ABS 450 signal cable offer you the experience of a “Hi-End” signal transfer without any of the annoying inductive noise created by electro-magnetic fields common in today’s vehicles.