Eighteen Sound 15W930
8Ω
Subwoofer
Nominal diameter | 15″ / 380 mm |
Resonance | 33 Hz |
Q factor | 0.22 |
Sensitivity | 96.8 dB |
Linear excursion | ± 7.5 mm |
Program Power | 800 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 96.8dB
- Frequency response 50 - 3600Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 33Hz
- Mechanical quality factor QMS 8.78
- Electrical quality factor QES 0.23
- Total quality factor QTS 0.22
Large signal parameters
- Maximum linear excursion xmax 7.5mm
- Air volume displaced at xmax VD 638cm³
- Power handling P 500W
- Program power Pmax 800W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.5Ω
- Inductance (1kHz) LE 1.47mH
- VC Diameter 75mm
- Winding material Copper
Magnet
- Force factor Bl 22.1N/A
- Motor constant Bl/√RE 9.42N/√W
- Material Ferrite
Diaphragm
- Effective diameter 329mm
- Effective area SD 850cm²
- Moving mass MMS 97g
- Moving mass (without air load) MMD 79.5g
- Material Weather protected
Suspensions
- Stiffness KMS 4.17N/mm
- Compliance CMS 240µm/N
- Equivalent volume to the compliance VAS 240L
- Mechanical resistance RMS 2.29N·s/m
Dimensions
- Nominal diameter 15″
- 380mm
- Overall diameter 393mm
- Baffle cutout diameter 360mm
- Overall depth 185mm
- Flange thickness 14mm
- Mounting depth 171mm
- Volume occupied by the driver (estimated) 4.4L
- Net weight 8.0kg
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