NVX NSW84v3

2x2Ω
2x4Ω

Subwoofer

Nominal diameter8″ / 200 mm
Resonance41.5 Hz
Q factor0.44
Sensitivity81.5 dB
Linear excursion± 10.5 mm
Program power800 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 81.5dB
  • Frequency response 20 - 200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 41.5Hz
  • Mechanical quality factor QMS 4.83
  • Electrical quality factor QES 0.49
  • Total quality factor QTS 0.44

Large signal parameters

  • Maximum linear excursion (one way) xmax 10.5mm
  • Air volume displaced at xmax VD 211cm³
  • Power handling P 400W
  • Program power Pmax 800W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series, estimated) LE 3.89mH

Magnet

  • Force factor (in series) Bl 22.2N/A
  • Motor constant Bl/√RE 8.78N/√W

Diaphragm

  • Effective diameter 160mm
  • Effective area SD 201cm²
  • Moving mass (including air load) MMS 145g
  • Moving mass MMD 142g

Suspensions

  • Stiffness KMS 9.8N/mm
  • Compliance CMS 102µm/N
  • Equivalent volume to the compliance VAS 5.85L
  • Mechanical resistance RMS 7.79N·s/m

Dimensions

  • Nominal diameter 8
  • 200mm
  • Overall diameter 215mm
  • Baffle cutout diameter 181mm
  • Mounting depth 127mm
  • Volume occupied by the driver 0.85L
  • Net weight 5.7kg

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