The Swart Atomic Space Tone (AST) MK2 is a 18 to 22 Watt tone monster. It can run either 6L6 or 6V6 valves, sports tube driven reverb and tremelo and has a switch to bypass the master volume circuit. Watch our gear demo below to hear what the head sounds like through the matching cabinet fitted with a single 12″ Celestion Gold speaker. Visit the Swart website for the full spec list.