Verellen COOP. Built right here in Seattle by Ben Verellen, the COOP is a 50-watt, 1×12″ combo made to capture classic American tones. Features a gorgeous stained Baltic Birch cabinet, spring reverb, and a 12″ Jensen speaker. These amps are hand-wired and built like tanks. This one is in great condition with just some minor scuffs to the cabinet. Sounds fantastic and has a warm, open chimey tone with great headroom and sweet natural overdrive.