Goldwood GW-1238/PA

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 36 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 43.4Hz
• Mechanical quality factor QMS 3.29
• Electrical quality factor QES 0.89
• Total quality factor QTS 0.70

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 131cm³
• Power handling P 130W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.1Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 38.1mm
• Winding material Aluminum

Magnet

• Force factor Bl 8.43N/A
• Motor constant Bl/√RE 3.16N/√W
• Weight 0.85kg

Diaphragm

• Effective diameter 258mm
• Effective area SD 523cm²
• Moving mass MMS 32.7g
• Moving mass (without air load) MMD 24.2g
• Material Paper

Suspensions

• Stiffness KMS 2.43N/mm
• Compliance CMS 412µm/N
• Equivalent volume to the compliance VAS 164L
• Mechanical resistance RMS 2.71N·s/m

Dimensions

• Nominal diameter 12″
• 308mm
• Overall diameter 308mm
• Baffle cutout diameter 276mm
• Mounting depth 152mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 2.722kg
• Frame material Stamped Steel