radial engineering shotgun 4 channel amp driver radial engineering shotgun 4 channel amp driver. the shotgun is a compact guitar-level signal buffer designed to drive up to four amplifiers simultaneously and fit nicely on any pedalboard. it features two inputs with a switching jack on input-2 that - when connected - changes the architecture from a 1x4 mono distribution system to a 2x2 stereo setup. the shotgun is equipped with clc – radial's unique consistent load compensation circuit that retains a stable input impedance to ensure the character of the signal remains unchanged, no matter if you use one or two sources. inside, a carefully designed low noise buffer circuit with a full-surface ground plane delivers your tone farther—up to 50 feet (15 meters) without noise. this is augmented with isolation transformers on outputs 2, 3 and 4 to help eliminate the nasty buzz and hum caused by ground loops when multiple amps are connected together. and like all radial products, the shotgun is made tough to handle the rigors of professional touring. powering is done using standard 9v supply or multi-pedal power brick. when used in the 1x4 mono-mode, the shotgun will effortlessly drive multiple amplifiers, direct box outputs and modeling amplifiers at the same time. in 2x2 stereo-mode, you can connect the output from your stereo chorus to the shotgun and drive two or four amps in stereo, in phase, without noise.