Goldwood GW-1244
4Ω
Woofer
Nominal diameter | 12″ / 305 mm |
Resonance | 29.7 Hz |
Q factor | 0.68 |
Sensitivity | 87.2 dB |
Linear excursion | ± 3 mm |
Program Power | 290 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.2dB
- Frequency response 18 - 4500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 29.7Hz
- Mechanical quality factor QMS 3.30
- Electrical quality factor QES 0.86
- Total quality factor QTS 0.68
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 4Ω
- DC resistance RE 3.6Ω
- Inductance (1kHz) LE 0.6mH
- VC Diameter 50.8mm
- Winding material Aluminum
Magnet
- Force factor Bl 8.48N/A
- Motor constant Bl/√RE 4.47N/√W
- Weight 1.134kg
Diaphragm
- Effective diameter 259mm
- Effective area SD 526cm²
- Moving mass MMS 93.2g
- Moving mass (without air load) MMD 84.8g
- Material Poly-Mica
Suspensions
- Stiffness KMS 3.25N/mm
- Compliance CMS 308µm/N
- Equivalent volume to the compliance VAS 120L
- Mechanical resistance RMS 5.27N·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
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