 Shields effects rig, which is composed largely of distortion, graphic equalizers and tone controls, consists of at least 30 effects pedals and is connected to a large number of amplifiers, which are often set to maximum volume to increase sustain.During live performances, and in particular the closing song "You Made Me Realise", My Bloody Valentine perform an interlude of noise and excessive feedback, known as "the holocaust", which would last for half an hour and often reached 130db.Shields later remarked "it was so loud it was like sensory deprivation.