THD Electronics FLX112BLK Flexi-50 1-12 Combo, Black, 120V English Overdrive California Clean. Texas Punch. "If youre a tone tweaker with a good assortment of tubes, youll have a blast experimenting with more unusual tube types and combinations in the quest to find a personalized sound thats as unique and fresh as the Flexi-50s design. This is an outstanding amp, and it wins an Editors Pick Award." - Guitar Player Magazine This 1x12" combo version provides more punch and bottom-end that you can imange a single 12" could. For every 1x12 combo amp sold, THD Electronics donates to American Forests to have two trees planted. Your purchase helps the environment! Hand-built in Seattle, WA.