In 1983, EBM was sold, and so Sound Engineering needed to become independent. On January 13th, 1984, Sound Engineering became Engineered Sound Systems (since Sound Engineering was already taken). This moniker was later shortened to E.S.S., Inc. As the years went by and technology evolved, E.S.S. moved from the old tape machines to music services delivered via satellite. They continued to be quite successful, especially when Pam Braun joined the company as a salesperson. Pam remained with the company into the early 90s.