Goldwood GW-8PC/8

Subwoofer

Nominal diameter8″ / 203 mm
Resonance55 Hz
Q factor0.56
Sensitivity87.7 dB
Linear excursion± 4.5 mm
Program Power330 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 87.7dB
  • Frequency response 25 - 2800Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 55Hz
  • Mechanical quality factor QMS 5.89
  • Electrical quality factor QES 0.62
  • Total quality factor QTS 0.56

Large signal parameters

  • Maximum linear excursion xmax 4.5mm
  • Air volume displaced at xmax VD 93cm³
  • Power handling P 165W
  • Program power Pmax 330W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.2Ω
  • Inductance (1kHz) LE 0.983mH
  • VC Diameter 38.1mm
  • Winding material Aluminum

Magnet

  • Force factor Bl 11.8N/A
  • Motor constant Bl/√RE 4.38N/√W
  • Weight 0.85kg

Diaphragm

  • Effective diameter 162mm
  • Effective area SD 206cm²
  • Moving mass MMS 34.3g
  • Moving mass (without air load) MMD 32.1g
  • Material Poly-Mica

Suspensions

  • Stiffness KMS 4.09N/mm
  • Compliance CMS 244µm/N
  • Equivalent volume to the compliance VAS 14.5L
  • Mechanical resistance RMS 2.01N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 8
  • 203mm
  • Overall diameter 203mm
  • Baffle cutout diameter 181mm
  • Mounting depth 94mm
  • Volume occupied by the driver (estimated) 0.68L
  • Net weight 1.674kg
  • Frame material Die Cast Aluminum
Goldwood GW-8PC/8 SPL


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