Mr. Henry Widjaja studied electrical engineering at Boston University, specialising in signal processing. And he was a teacher too.

Until in 2016 he created GFI System in Jakarta.

When he started developing DSP-based effects a few years later, they were noticed and picked up.

In 2020 at the NAMM show, we got to know this great pedals.

Consider these pedals are part of the big league of solid boutique pedals club !