Goldwood GW-206/4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
• Frequency response 56 - 8000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 58.9Hz
• Mechanical quality factor QMS 3.84
• Electrical quality factor QES 0.73
• Total quality factor QTS 0.61

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 34cm³
• Power handling P 90W
• Program power Pmax 180W

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 5.19N/A
• Motor constant Bl/√RE 2.7N/√W
• Weight 0.567kg

Diaphragm

• Effective diameter 132mm
• Effective area SD 136cm²
• Moving mass MMS 14.4g
• Moving mass (without air load) MMD 13.2g
• Material Poly

Suspensions

• Stiffness KMS 1.97N/mm
• Compliance CMS 507µm/N
• Equivalent volume to the compliance VAS 13.2L
• Mechanical resistance RMS 1.39N·s/m
• Surround material Rolled Foam

Dimensions

• Nominal diameter 6.5″
• 165mm
• Overall diameter 165mm
• Baffle cutout diameter 146mm
• Mounting depth 76mm
• Volume occupied by the driver (estimated) 0.55L
• Net weight 1.361kg
• Frame material Stamped Steel