SB Audience NERO-21SW1100D

Subwoofer

Nominal diameter21″ / 540 mm
Resonance32 Hz
Q factor0.34
Sensitivity95.9 dB
Linear excursion± 12.2 mm
Program Power2200 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 95.9dB
  • Frequency response 32 - 2600Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 10.92
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion xmax 12.2mm
  • Maximum excursion before damage xlim 19mm
  • Air volume displaced at xmax VD 2019cm³
  • Power handling P 1100W
  • Program power Pmax 2200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.1Ω
  • Inductance (1kHz) LE 1.29mH
  • VC Diameter 127mm
  • Winding height HVC 28.2mm
  • Winding material AISV Copper Wire
  • Former material FIBSV

Magnet

  • Flux density B 1.12T
  • Force factor Bl 30N/A
  • Motor constant Bl/√RE 13.3N/√W
  • Air gap height HAG 12mm
  • Diameter 280mm
  • Material Ferrite

Diaphragm

  • Effective diameter 459mm
  • Effective area SD 1655cm²
  • Moving mass MMS 309g
  • Moving mass (without air load) MMD 262g
  • Material Proprietar cone paper material with silk cotton tree

Suspensions

  • Stiffness KMS 12.5N/mm
  • Compliance CMS 80µm/N
  • Equivalent volume to the compliance VAS 313L
  • Mechanical resistance RMS 5.67N·s/m

Dimensions

  • Nominal diameter 21
  • 540mm
  • Overall diameter 540mm
  • Baffle cutout diameter 490mm
  • Overall depth 249mm
  • Flange thickness 16mm
  • Mounting depth 233mm
  • Volume occupied by the driver 13.4L
  • Net weight 21.0kg
  • Frame material Aluminium die cast
SB Audience NERO-21SW1100D SPL & Impedance
SB Audience NERO-21SW1100D Dimensions

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