D&B Audiotechnik Z1613.000 21S-SUB 21-Inch Passive Subwoofer

The 21S-SUB is a high performance subwoofer for use with the xS-Series and xA-Series loudspeakers and is intended for a wide range of permanently installed applications. The cabinet houses a single long excursion 21" driver in a bass-reflex design. The large, specially shaped reflex port enables the 21S-SUB to achieve high Sound Pressure Levels from a cabinet with a small footprint. When operated in INFRA mode, the 21S-SUB can be used to complement other d&b subwoofers by extending the frequency response of the system down to 33Hz. The 21S-SUB can be ground stacked or flown in either orientation. It can be flown individually or in a cluster of two cabinets. The enclosure is constructed from marine plywood with an impact resistant black paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The top, bottom and rear panels each incorporate a pair of M10 threaded inserts for attaching d&b rigging hardware.

Features:

• Components: 2 x 12"/1.4"
• Dispersion: 110° x 45°
• SPLmax: 137 dB
• Weight: 33 kg / 73 lb

Specifications:

• System data:
  • Frequency response (-5 dB standard): 35Hz – 105Hz
  • Frequency response (-5 dB INFRA mode): 33Hz – 85Hz
• Max. sound pressure:
  • D20/30D amplifier: 134dB
  • D80 amplifier: 135dB
  • Cabinets per amplifier channel: 1
• Loudspeaker data:
  • Configuration: Installation-specific high-performance subwoofer with a compact footprint
  • Nominal impedance: 4 ohm
  • Power handling capacity (RMS/peak 10ms): 650/2600W
  • Components: 21″ driver with neodymium magnet
  • Connections: Faston connector type 2
• Dimensions / Weight (H x W x D) (Approx.):
  • Height: 43-5/16″
  • Width: 22-13/16″
  • Depth: 20-11/16″
  • Weight: 119 lb. / 54 kg