The Marshall 50th Anniversary JVM1 head is part of Marshall's massive anniversary celebration. This 1W, all-tube amp pays homage to the Marshall tone and aesthetics of the 2000s. The British-built head is the final in a series of five limited-edition pairings--each one paying homage to one of the five decades of Marshall's legacy. The two channels--Clean and OD--are footswitchable. A Resonance button adds a resonant bass boost. Independent Volume control for Clean channel and Independent Volume and Gain controls on the OD channel. You'll get master controls for Treble, Middle, Bass and Presence. It also features series FX Loop, and Low Power switch..