SG Systems

Parent brand: 

product types: 

  • solid state amplifiers
  • tube amplifiers


SG Systems was a division of the Chicago Musical Instrument Company (CMI). They made a range of guitar and bass amplifiers in the 1970s which combined tube power amp circuits with solid state preamps. They also made PA systems.

Source: SG Systems catalogs 1973 - 1975


Chicago Musical Instrument Compnay
7373 North Cicero
Lincolnwood , IL
United States
Illinois US