In 1989 Stetsom began his career in the auto sound industry. With only 2 employees the company launches its first amplifier, the AMX-5, a booster 2 channels 50 Watts and begins to grow rapidly.
The company launched the best-selling line boosters in the history of automotive sound, the CL line, reaching the impressive mark of 2 million units in 2012.
Stetsom hits the SPL world record in the United States, being the first Brazilian brand amplifiers to achieve such a feat. The brand becomes prestigious and globally recognized opening doors to its exports to over 45 countries.
Stetsom Bills The Award for Best Amplifier and Antenna Best Brand Award by the prestigious Brazil, a fact that would be repeated in 2015.