Diezel VH-4 PedalWhen musical architect Peter Diezel created the DIEZEL VH4 in 1994 he unknowingly sparked a revolution in tone, creating such a demand that he literally had no choice but to put his own personal creation into production. More than 20 years later, the VH4 has become one of the most loved high gain mps in the world and the powerhouse that put DIEZEL at the forefront of music with some of the most iconic players (from Metallica to Guns N Roses)