Ground Zero NUCLEAR GZNW 30XMAX-II

2x1Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance35.6 Hz
Q factor0.61
Sensitivity82 dB
Linear excursion± 30 mm
Program Power6000 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 82dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 35.6Hz
  • Mechanical quality factor QMS 6.82
  • Electrical quality factor QES 0.67
  • Total quality factor QTS 0.61

Large signal parameters

  • Maximum linear excursion (one way) xmax 30mm
  • Air volume displaced at xmax VD 1335cm³
  • Power handling P 3000W
  • Program power Pmax 6000W

Voice Coil

  • Nominal impedance Z 2 x 1Ω
  • DC resistance (in series) RE 1.8Ω
  • Inductance (1kHz, in series) LE 1.28mH
  • VC Diameter 75mm
  • Winding material CCA

Magnet

  • Force factor (in series) Bl 16N/A
  • Motor constant Bl/√RE 11.9N/√W
  • Diameter 250mm

Diaphragm

  • Effective diameter 238mm
  • Effective area SD 445cm²
  • Moving mass MMS 427g
  • Moving mass (without air load) MMD 420g
  • Material Aluminum

Suspensions

  • Stiffness KMS 21.3N/mm
  • Compliance CMS 47µm/N
  • Equivalent volume to the compliance VAS 13.6L
  • Mechanical resistance RMS 14N·s/m
  • Spider material Nomex

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 314mm
  • Baffle cutout diameter 282mm
  • Overall depth 216mm
  • Flange thickness 16mm
  • Mounting depth 200mm
  • Volume occupied by the driver (estimated) 4.2L
  • Frame material Aluminium

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