Diezel is a German amplifier brand known for its high-quality, high-gain amplifiers, which are particularly popular among rock and metal musicians. Founded by Peter Diezel in the 1990s, the company has become synonymous with powerful, precise tone and durability. Diezel amplifiers, such as the **Herbert** and **Vh4**, are revered for their versatility, offering tight, articulate low-end, and a wide range of distortion tones from smooth overdrive to aggressive, saturated gain. The brand is favoured by many top musicians due to its robust construction and the ability to deliver professional-grade performance on stage and in the studio.