HiFonics ZEUS SPL ZSPL12D2

2x2Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance34 Hz
Q factor0.53
Sensitivity86.6 dB
Linear excursion± 13 mm
Program Power1800 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 86.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 34Hz
  • Mechanical quality factor QMS 4.24
  • Electrical quality factor QES 0.61
  • Total quality factor QTS 0.53

Large signal parameters

  • Maximum linear excursion (one way) xmax 13mm
  • Maximum excursion before damage xlim 26mm
  • Air volume displaced at xmax VD 666cm³
  • Power handling P 600W
  • Program power Pmax 1800W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 3.4Ω
  • Inductance (1kHz, in series, estimated) LE 2.46mH
  • VC Diameter 64mm
  • Winding height HVC 38mm
  • Former material BASV

Magnet

  • Force factor (in series) Bl 15.1N/A
  • Motor constant Bl/√RE 8.17N/√W
  • Diameter 156mm
  • Height 50mm
  • Weight 3.402kg

Diaphragm

  • Effective diameter 255mm
  • Effective area SD 512cm²
  • Moving mass MMS 188g
  • Moving mass (without air load) MMD 180g
  • Material Paper

Suspensions

  • Stiffness KMS 8.7N/mm
  • Compliance CMS 115µm/N
  • Equivalent volume to the compliance VAS 42.7L
  • Mechanical resistance RMS 9.47N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 320mm
  • Baffle cutout diameter 276mm
  • Mounting depth 166mm
  • Volume occupied by the driver (estimated) 2.7L
  • Frame material Steel

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