Goldwood GW-5028/S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.3dB
• Frequency response 62 - 9000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 80.1Hz
• Mechanical quality factor QMS 3.90
• Electrical quality factor QES 1.20
• Total quality factor QTS 0.90

Large signal parameters

• Maximum linear excursion xmax 1.8mm
• Air volume displaced at xmax VD 15cm³
• 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 5.3N/A
• Motor constant Bl/√RE 1.99N/√W
• Weight 0.454kg

Diaphragm

• Effective diameter 103mm
• Effective area SD 83.7cm²
• Moving mass MMS 9.1g
• Moving mass (without air load) MMD 8.5g
• Material Poly-Mica

Suspensions

• Stiffness KMS 2.35N/mm
• Compliance CMS 426µm/N
• Equivalent volume to the compliance VAS 4.2L
• Mechanical resistance RMS 1.17N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 5.25″
• 140mm
• Overall diameter 140mm
• Baffle cutout diameter 114mm
• Mounting depth 70mm
• Volume occupied by the driver (estimated) 0.5L
• Net weight 1.247kg
• Frame material Stamped Steel