Goldwood GW-1258

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.7dB
• Frequency response 33 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 41.5Hz
• Mechanical quality factor QMS 3.10
• Electrical quality factor QES 0.56
• Total quality factor QTS 0.48

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 117cm³
• Power handling P 190W
• Program power Pmax 290W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.056mH
• VC Diameter 63.5mm
• Winding material Aluminum

Magnet

• Force factor Bl 10.4N/A
• Motor constant Bl/√RE 4.53N/√W
• Weight 1.417kg

Diaphragm

• Effective diameter 273mm
• Effective area SD 586cm²
• Moving mass MMS 45g
• Moving mass (without air load) MMD 35.5g
• Material Polymer

Suspensions

• Stiffness KMS 3.05N/mm
• Compliance CMS 328µm/N
• Equivalent volume to the compliance VAS 158L
• Mechanical resistance RMS 3.79N·s/m

Dimensions

• Nominal diameter 12″
• 308mm
• Overall diameter 308mm
• Baffle cutout diameter 276mm
• Mounting depth 130mm
• Volume occupied by the driver (estimated) 0.96L
• Net weight 2.325kg
• Frame material Stamped Steel