About Line 6, Inc. Based in Calabasas, California, Line 6 is a leading manufacturer of guitars, amplifiers, effects, effect processors, recording interfaces and digital wireless systems. The company is world renowned for its studio- and stage-standard gear featuring its patented amp and effect modeling and digital wireless technologies. Line 6 invented digital guitar amp modeling technology in 1996 and is currently the #1 maker of guitar amplifiers. Its award-winning products are used by musicians worldwide and have been featured on countless platinum and Grammy® award-winning titles. Line 6 is distributed in over 60 countries with operations in the United States, the United Kingdom, China and Japan.