Back to series Signature 500

Signature Sub 530A

Active subwoofer for the lowest frequencies

  • High-performance Class D power amplifier with 140/280 watts
  • 300 mm subwoofer, Klippel-optimized
  • Active frequency response equalization in the electronics
  • Adjustable volume and crossover frequency
  • Optimum addition for hi-fi and home cinema configurations

Active subwoofer for the lowest frequencies

There are times when you simply can’t have enough bass and we have developed the Signature Sub 300 A precisely for these situations. With its forward-facing 300 mm subwoofer, it is able to reproduce frequencies down to as low as 20 hertz. It always remains controlled and precise on account of the integrated amplifier with power up to 280 watts being perfectly matched to the Klippel-optimized chassis, with active frequency response equalization ensuring that the Sub 300 A fits into any AV environment. For optimum adjustment to the room, the signal phase can be rotated by up to 180°. The crossover frequency can be freely selected between 40 and 120 Hz, depending on the speakers used.

Technical specifications


  • Solid metal basket with generous ventilation openings
  • 300 mm high-power long-throw woofer with Klippel®-optimized magnet system
  • Ventilated high-performance voice coil to guarantee highest operational reliability
  • The coated paper cone ensures a profound audio reproduction