Goldwood GW-208/4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
• Frequency response 45 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 51.5Hz
• Mechanical quality factor QMS 4.11
• Electrical quality factor QES 0.85
• Total quality factor QTS 0.70

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 52cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.7Ω
• Inductance (1kHz) LE 0.4mH
• VC Diameter 38.1mm
• Winding material Aluminum

Magnet

• Force factor Bl 5.93N/A
• Motor constant Bl/√RE 3.08N/√W
• Weight 0.567kg

Diaphragm

• Effective diameter 162mm
• Effective area SD 206cm²
• Moving mass MMS 24.9g
• Moving mass (without air load) MMD 22.7g
• Material Poly

Suspensions

• Stiffness KMS 2.61N/mm
• Compliance CMS 383µm/N
• Equivalent volume to the compliance VAS 22.8L
• Mechanical resistance RMS 1.96N·s/m
• Surround material Rolled Foam

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 203mm
• Baffle cutout diameter 184mm
• Mounting depth 86mm
• Volume occupied by the driver (estimated) 0.62L
• Net weight 1.531kg
• Frame material Stamped Steel