SB AUDIENCE NERO-21SW1100D 21″ 8ohm Ferrite Subwoofer Loudspeaker

SB AUDIENCE NERO-21SW1100D 21″ 8ohm Ferrite Subwoofer Loudspeaker

Key Features: 

• Proprietary paper cone with silk cotton tree
• Double spider high stability suspension
• Cooling device on yoke for improved heat transfer
• 5″ voice coil with APC (Advanced Polymer Coating)
• Shorting ring in motor system for reduced distortion
• Cast aluminium chassis
• Minimum damping fibre glass voice coil former

Product Specifications:

• Nominal Impedance: 8 ohm
• Minimum Impedance: 5 ohm
• AES Power Handling: 1100 W
• Maximum Power Handling: 2200 W
• Sensitivity: 101 dB
• Frequency Range: 32-2600 Hz
• Voice Coil Diameter: 127 mm
• Winding Material: AISV Copper Wire
• Former Material: FIBSV
• Winding Depth 28.2 mm
• Magnetic Gap Depth: 12 mm
• Flux Density: 1.12 T
• Magnet: Ferrite
• Basket Material: Aluminium die cast
• Demodulation: Aluminium shorting ring and Aluminium cooling device
• Cone Surround: Triple roll
• NET Air Volume filled by driver: 13.37 litres
• Spider Profile: Double constant height waves
• Weather Resistant: Yes
• Overall Diameter: 540 mm (2.3 in)
• Bolt Circle Diameter: 518 mm (20.4 in)
• Baffle Cutout Diameter: 490 mm (19.29 in)

Thiele Small Parameters

• Fs 32 Hz
  Re 5.1 Ohm
  Qes 0.35
  Qms 10.92
  Qts 0.34
  Vas 312.6 liters
  Sd 1654.7 cm²
  Xmax(3) 12.20 mm
  Xdamage(4) 38 mm
  Mms 309.3 g
  BI 30 Tm
  Le 1.29 mH
  Cms 0.08mm/N
  Rms 5.67 Kg/s
  Eta Zero 2.79 %
  EBP 91

Dimensions & Weight

• Overall Diameter 540 mm (21.3 in)
  Bolt Circle Diameter 518 mm (20.4 in)
  Baffle Cutout Diameter 490 mm (19.29 in)
  Mounting Depth 233.2 mm (9.18 in)
  Flange and Gasket Thickness 15.5 mm (0.6 in)
  Net Weight 21 Kg (46.20 lb)
  Shipping Box 586 x 586 x 296 mm (23.07 x 23.07 x 11.65 in)
  Gross Weight 24.5 Kg (54.01 lb)

  Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.

Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk