Goldwood GW-1558

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.1dB
• Frequency response 28 - 4400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 31Hz
• Mechanical quality factor QMS 3.70
• Electrical quality factor QES 0.76
• Total quality factor QTS 0.63

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 175cm³
• Power handling P 200W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.103mH
• VC Diameter 63.5mm
• Winding material Aluminum

Magnet

• Force factor Bl 9.8N/A
• Motor constant Bl/√RE 4.26N/√W
• Weight 1.417kg

Diaphragm

• Effective diameter 333mm
• Effective area SD 873cm²
• Moving mass MMS 70.5g
• Moving mass (without air load) MMD 52.6g
• Material Polymer

Suspensions

• Stiffness KMS 2.68N/mm
• Compliance CMS 374µm/N
• Equivalent volume to the compliance VAS 400L
• Mechanical resistance RMS 3.71N·s/m

Dimensions

• Nominal diameter 15″
• 391mm
• Overall diameter 391mm
• Baffle cutout diameter 356mm
• Mounting depth 159mm
• Volume occupied by the driver (estimated) 1.2L
• Net weight 2.835kg
• Frame material Stamped Steel