Goldwood GW-1538/PA

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.9dB
• Frequency response 35 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 41.2Hz
• Mechanical quality factor QMS 5.95
• Electrical quality factor QES 1.76
• Total quality factor QTS 1.36

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 210cm³
• Power handling P 140W
• Program power Pmax 270W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.0Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 38.1mm
• Winding material Aluminum

Magnet

• Force factor Bl 9.23N/A
• Motor constant Bl/√RE 3.49N/√W
• Weight 0.85kg

Diaphragm

• Effective diameter 327mm
• Effective area SD 840cm²
• Moving mass MMS 82.2g
• Moving mass (without air load) MMD 65g
• Material Paper

Suspensions

• Stiffness KMS 5.5N/mm
• Compliance CMS 182µm/N
• Equivalent volume to the compliance VAS 180L
• Mechanical resistance RMS 3.58N·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