Goldwood GW-1248

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87dB
• Frequency response 18 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33.3Hz
• Mechanical quality factor QMS 3.30
• Electrical quality factor QES 1.30
• Total quality factor QTS 1.00

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 158cm³
• Power handling P 150W
• Program power Pmax 290W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.1Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 50.8mm
• Winding material Aluminum

Magnet

• Force factor Bl 10N/A
• Motor constant Bl/√RE 3.75N/√W
• Weight 1.134kg

Diaphragm

• Effective diameter 259mm
• Effective area SD 526cm²
• Moving mass MMS 88.2g
• Moving mass (without air load) MMD 79.8g
• Material Poly-Mica

Suspensions

• Stiffness KMS 3.85N/mm
• Compliance CMS 260µm/N
• Equivalent volume to the compliance VAS 104L
• Mechanical resistance RMS 5.59N·s/m
• Surround material Butyl Rubber

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 305mm
• Baffle cutout diameter 286mm
• Mounting depth 123mm
• Volume occupied by the driver (estimated) 0.91L
• Net weight 2.189kg
• Frame material Stamped Steel