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Signature Sub 730A

Powerful in an elegant outfit

  • Adjustable volume and crossover frequency
  • Optimum addition for hi-fi and home cinema configurations
  • High-performance Class D 220/440 watt power amplifier
  • 300 mm subwoofer, Klippel-optimized
  • Active frequency response equalization in the electronics

Powerful in an elegant outfit

The active subwoofer in the Signature 700 series is far too good to be hidden away, because it too features a high-gloss black or white front panel and a satin cabinet in the same color. Even more interesting is the technology inside, as the 300 mm woofer radiates downwards in a "down-firing" configuration. The long-throw chassis has been optimized by using Klippel laser measurement technology. A highly efficient Class D power amplifier drives the subwoofer with 190 or 380 watts of continuous/music power respectively. The Signature Sub 730 A can reproduce powerful sounds down to 19 Hz, and the volume and crossover frequency can be precisely coordinated to suit the acoustics of the room and the main speakers used

Technical specifications

  • Powered bassreflex subwoofer, down-fire
  • 1 x 12“ powered subwoofer
Output power (RMS/Max.)
  • 190 / 380 Watts
Frequency Response
  • 19- 200 Hz
  • 19 – 200 Hz
Crossover Frequencies
  • 40 – 120 Hz adjustable
  • 0° - 180° adjustable


  • The coated paper cone ensures a profound audio reproduction
  • Solid metal basket with generous ventilation openings
  • Stereo low level inputs
  • Mains supply
  • Large resonance absorbing feet
  • ´Down-firing´ principle
  • High-gloss lacquered baffle combined with noble satin matte lacquer (body)
  • Adjustable volume and crossover frequency
  • Automatic standby function with low power consumption <0.5 watts (can be switched off)
  • Power switch
  • Mains voltage 110 – 240V
  • High performance class-D amplifier
  • Active frequency response equalization up to 120 Hz (LPC circuit) for seamless integration in AV environments


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