Pedal Powered Sound System.
Designed & Built with & for Bristol Friends of the Earth + young unemployed. Power source - 2 x 150W army generators to 4 x 50W rms amplifiers. 2 Amps bridged on bass low cut into horn above the piece. 2 Channels stereo into mid/top speakers set on swivels at front (not shown). Fully independent suspension at rear by tension rubber & torsion beam.