Features:

• Analog cortrol card C-4800 is configured for Amplifier AM-4U
  or AP-4U,The operation by properly combining control modules,
  we can drive tops (two way active) and woofers altogether with
  one 4-channel amplifier. The various possibilities of combining
  control modules according to real application requirement make
  configuration and application of PA systems obviously economic
  and efficient.
• a wide range of panel modules for different applications are available.
  Here we cannot provide a closed listing of all modules, since the
  amplifier system, with its open architecture feature, is still being
  continuously optimized and expanded by our talented and innovative
  R&D engineers to meet the changing and developing application
  demands world wide. So if you are interested in our updated listing
  of models, please contact our local dealer.