The Signature #4 Jim Root Terror Head is modelled after the Dirty Channel on the same amp that Jim Root plays in the studio and on the road: the Orange Rockerverb 100. This all-valve, 15-watt amp is capable of far more than high gain rock and metal though. With a full 3-band EQ players will find it easy to dial in everything from vintage rock, blues and beyond. The addition of a valve-driven FX loop allows the user to take the tone in any direction they want.