Goldwood GW-6PC/4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 78.3dB
• Frequency response 46 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45.6Hz
• Mechanical quality factor QMS 7.95
• Electrical quality factor QES 0.97
• Total quality factor QTS 0.87

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 55cm³
• Power handling P 140W
• Program power Pmax 280W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.7Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 38.1mm
• Winding material Aluminum

Magnet

• Force factor Bl 5.89N/A
• Motor constant Bl/√RE 3.06N/√W
• Weight 0.567kg

Diaphragm

• Effective diameter 132mm
• Effective area SD 136cm²
• Moving mass MMS 61.6g
• Moving mass (without air load) MMD 60.4g
• Material Poly-Mica

Suspensions

• Stiffness KMS 2.87N/mm
• Compliance CMS 348µm/N
• Equivalent volume to the compliance VAS 10L
• Mechanical resistance RMS 2.22N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6.5″
• 175mm
• Overall diameter 175mm
• Baffle cutout diameter 156mm
• Mounting depth 79mm
• Volume occupied by the driver (estimated) 0.57L
• Net weight 1.417kg
• Frame material Die Cast Aluminum