D&B Audiotechnik Z0057.003 B22 Passive Subwoofer with NLT4 F/M Connections

The B22-SUB is a high performance subwoofer designed for ground stacked applications, housing two long excursion 18" drivers built into a bandpass horn cabinet design. With high Sound Pressure Levels and an extended frequency response, the B22-SUB is ideal for any large format sound reinforcement application. When operated in INFRA mode, the B22-SUB can be used to complement other d&b subwoofers by extending the frequency response of the system. When three or any multiple of three B22 subwoofers are used, they can be positioned in a Cardioid Subwoofer Array, achieving impressive directivity control at lower frequencies and significantly reducing the energy radiating towards to the rear.

The cabinet is constructed from marine plywood, and has an impact resistant paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The side panels of the B22-SUB both incorporate four handles, whilst four wheels are mounted to the rear. The enclosure features two runners to protect the bottom panel from scratching. Two correspondingly shaped recesses are incorporated into the top panel of each B22-SUB cabinet to accept these runners, preventing cabinet movement when stacked.

Features:

• High performance subwoofer intended for ground stacked applications
• Two 18" long excursion neodymium LF drivers built into a bandpass horn cabinet
• High Sound Pressure Levels for use in any large format sound reinforcement application
• INFRA mode extends the operating frequency response even further to supplement other d&b subwoofers
• Any three or multiple of three B22-SUBs can be used in a Cardioid Subwoofer Array to reject low frequency energy radiating towards the rear
• Efficient cabinet design produces very high Sound Pressure Levels

Specifications:

• System data:
  • Frequency response (-5 dB standard): 37 Hz - 90 Hz
  • Frequency response (–5 dB INFRA mode): 32 Hz - 68 Hz
  • Max. sound pressure:
    • with D20/30D: 140 dB
    • with D40/D80/40D: 143 dB
• Loudspeaker data:
  • Configuration: High performance subwoofer intended for ground stacked applications
  • Nominal impedance: 4 Ω
  • Power handling capacity (RMS/peak 10 ms): 1000/4000 W
  • Components: 2 x 18" driver with neodymium magnet
  • Connections: 2 x NLT4 F/M
• Dimensions / weight:
  • Dimensions (H x W x D):
    • 585 x 1160 x 920 / 1046 mm
    • 23 x 45.7 x 36.2 / 41.2”
  • Weight: 106 kg (234 lb)