D&B Audiotechnik Z0610.001 B4 15-Inch/12-Inch NL4 Dual Passive Subwoofer

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D&B Audiotechnik Z0610.001 B4 15-Inch/12-Inch NL4 Dual Passive Subwoofer

The B4-SUB is an actively driven cardioid subwoofer powered by a single amplifier channel. It houses two long excursion neodymium drivers in an integrated cardioid setup: a 15" driver in a bass-reflex design facing to the front and a 12" driver in a two chamber bandpass design radiating to the rear. The cardioid dispersion pattern resulting from this approach avoids unwanted energy behind the system that greatly reduces the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction. The B4 subwoofer can only be used in a ground stacked setup. The B4-SUB cabinet is constructed from marine plywood, has an impact and weather resistant paint finish and a pair of handles. An M20 threaded flange in the top panel accepts the d&b Loudspeaker stand winder M20. The loudspeaker cabinet is also available in Special Colour (SC) options.


  • Components 15"/12"
  • Dispersion Cardioid
  • SPLmax 131 dB
  • Weight 44 kg / 97 lb


  • System data:
    • Frequency response (-5 dB standard): 40 - 150 Hz
    • Frequency response (-5 dB 100 Hz mode): 40 - 100 Hz
    • Max. sound pressure:
      • with 10D: 128 dB
      • with D20/30D: 131 dB
      • with D40/D80/40D: 131 dB
    • Cabinets per amplifier channel: 2
  • Loudspeaker data:
    • Configuration: Cardioid subwoofer
    • Nominal impedance: 6 Ω
    • Power handling capacity (RMS/peak 10 ms): 500/2000 W
    • Components: 15" / 12" driver
    • Connections: 2 x NL4
  • Dimensions / weight:
    • Dimensions (H x W x D): 476 x 580 x 700/ 800 mm (18.7 x 22.8 x 27.73 / 31.6")
    • Weight: 44 kg / 97 lb


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