High Pass Filter were a live electro-dub band formed in Melbourne, Australia. The band was active from 1995–2006 and supported many major touring artists such as Beastie Boys, Blues Explosion, Tortoise, Fugazi, Lee 'Scratch' Perry, The Boredoms and Mad Professor. The group began as a live dub outfit playing local clubs and bars around Melbourne's Fitzroy area. They quickly became known for their experimental sound and mostly instrumental songs. Live concerts regularly involved the use of unconventional instruments such as looped tape machines, conch shells, telephone receivers, air tubes and a variety of toys