Goldwood GW-205/8S

Woofer

Nominal diameter5.25″ / 152 mm
Resonance86.1 Hz
Q factor0.82
Sensitivity86.7 dB
Linear excursion± 2 mm
Program Power130 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 86.7dB
  • Frequency response 62 - 1200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 86.1Hz
  • Mechanical quality factor QMS 3.18
  • Electrical quality factor QES 1.10
  • Total quality factor QTS 0.82

Large signal parameters

  • Maximum linear excursion xmax 2mm
  • Air volume displaced at xmax VD 19cm³
  • Power handling P 70W
  • Program power Pmax 130W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.1Ω
  • Inductance (1kHz) LE 0.4mH
  • VC Diameter 25.4mm
  • Winding material Aluminum

Magnet

  • Force factor Bl 5.62N/A
  • Motor constant Bl/√RE 2.11N/√W
  • Weight 0.454kg

Diaphragm

  • Effective diameter 111mm
  • Effective area SD 96.8cm²
  • Moving mass MMS 9g
  • Moving mass (without air load) MMD 8.3g
  • Material Poly

Suspensions

  • Stiffness KMS 2.63N/mm
  • Compliance CMS 381µm/N
  • Equivalent volume to the compliance VAS 5L
  • Mechanical resistance RMS 1.53N·s/m
  • Surround material Rolled Foam

Dimensions

  • Nominal diameter 5.25
  • 152mm
  • Overall diameter 152mm
  • Baffle cutout diameter 127mm
  • Mounting depth 76mm
  • Volume occupied by the driver (estimated) 0.55L
  • Net weight 1.361kg
  • Frame material Stamped Steel
Goldwood GW-205/8S SPL & Impedance


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