Goldwood GW-15PC/8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.2dB
• Frequency response 25 - 2100Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32.9Hz
• Mechanical quality factor QMS 3.59
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.47

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 494cm³
• Power handling P 275W
• Program power Pmax 550W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.1Ω
• Inductance (1kHz) LE 2.49mH
• VC Diameter 50.8mm
• Winding material Aluminum

Magnet

• Force factor Bl 20.2N/A
• Motor constant Bl/√RE 7.58N/√W
• Weight 2.126kg

Diaphragm

• Effective diameter 324mm
• Effective area SD 824cm²
• Moving mass MMS 152g
• Moving mass (without air load) MMD 135g
• Material Poly-Mica

Suspensions

• Stiffness KMS 6.47N/mm
• Compliance CMS 155µm/N
• Equivalent volume to the compliance VAS 153L
• Mechanical resistance RMS 8.74N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 15″
• 387mm
• Overall diameter 387mm
• Baffle cutout diameter 349mm
• Mounting depth 140mm
• Volume occupied by the driver (estimated) 1L
• Net weight 2.495kg
• Frame material Die Cast Aluminum