Series:
  Bass
  Champion
  Cinema
  Grey
  Leader
  Master
  Performer
   
   

General information:

After the Champion Series came (1987) as "modular" system (to be transformed into the current "Champ Series"), the Performer Series was introduced in 1990.

The Grey Series initially marked as "Economy Series", was a budget-conscious line of speakers using SA woofers and DAS compression drivers.
The Grey Series were produced between 1991 and 1995.