TC Electronic was founded by two musician brothers, Kim and John Rish?j. Their SCF, (“Stereo Chorus + Pitch Modulator & Flanger”) was a successful early product.[1] After initial success with guitar effect pedals, they developed 19″ rack mounted processors, including the TC2290 delay released in 1985. TC Electronic formed the current TC Group in 2002 after acquiring TGI plc. TGI consisted of Tannoy, GLL Goodman, Lab.Gruppen and Martin Audio. Martin Audio was sold quickly after the merger and Goodman Loudspeakers closed. TC Works (software development), based in Germany, was once part of the TC group, but reintegrated with TC Electronic in 2005. The current TC Group is a holding company of five individual brand companies consisting of Tannoy, (speakers and studio monitors), Lab.Gruppen (amplifiers), TC Electronic, TC-Helicon (harmonisers and vocal processors) and TC|Applied Technologies (digital-audio semiconductor development) and the sales-companies TC Group|International, TC Group|Americas, TC Group|Japan, TC Group|China, and TC Group|Middle East. TC Electronic also co-develops products with Dynaudio Acoustics (studio monitors) and their European sales arm TC Group|International distributes Blue Microphones outside of the US. The company was purchased by Music Group in August 2015.