Krank Amplification is an American company based in Arizona that designs and manufactures guitar amplifiers. Krank manufactures tube amplifiers exclusively. Amplifiers Notable in several guitar magazines, including Guitar World, Guitar One , and Total Guitar , Krank has been working since 2003. Popularly, they are known for the Revolution and Krankenstein amplifiers.TriviaIn the popular Playstation 2 video game Guitar Hero, the amplifiers used by the players are Krank Amplif