Eighteen Sound 18ND9310B
8Ω
Subwoofer
| Nominal diameter | 18″ / 460 mm |
| Resonance | 31 Hz |
| Q factor | 0.35 |
| Sensitivity | 95 dB |
| Linear excursion | ± 9.5 mm |
| Program power | 1400 W |
Discontinued
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95dB
- Frequency response 28 - 2500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 31Hz
- Mechanical quality factor QMS 7.00
- Electrical quality factor QES 0.37
- Total quality factor QTS 0.35
Large signal parameters
- Maximum linear excursion (one way) xmax 9.5mm
- Maximum excursion before damage xlim 25mm
- Air volume displaced at xmax VD 1159cm³
- Power handling P 1000W
- Program power Pmax 1400W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.0Ω
- Inductance (1kHz) LE 1.2mH
- VC Diameter 100mm
- Winding material Copper
Magnet
- Force factor Bl 21.8N/A
- Motor constant Bl/√RE 9.75N/√W
- Material Neodymium
Diaphragm
- Effective diameter 394mm
- Effective area SD 1220cm²
- Moving mass (including air load) MMS 182g
- Moving mass MMD 152g
- Material Straight ribbed, paper
Suspensions
- Stiffness KMS 6.94N/mm
- Compliance CMS 144µm/N
- Equivalent volume to the compliance VAS 303L
- Mechanical resistance RMS 5.06N·s/m
- Surround material Triple roll, Polycotton
Dimensions
- Nominal diameter 18″
- 460mm
- Overall diameter 462mm
- Baffle cutout diameter 422mm
- Overall depth 224mm
- Flange thickness 26mm
- Mounting depth 198mm
- Volume occupied by the driver (estimated) 5.3L
- Net weight 7.6kg
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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