Eighteen Sound 21NLW5300
8Ω
Subwoofer
| Nominal diameter | 21″ / 533 mm |
| Resonance | 31 Hz |
| Q factor | 0.32 |
| Sensitivity | 95.4 dB |
| Linear excursion | ± 15.3 mm |
| Program power | 3600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.4dB
- Frequency response 30 - 500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 31Hz
- Mechanical quality factor QMS 4.70
- Electrical quality factor QES 0.34
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion (one way) xmax 15.3mm
- Air volume displaced at xmax VD 2543cm³
- Power handling P 1800W
- Program power Pmax 3600W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.2Ω
- Inductance (1kHz) LE 2.6mH
- VC Diameter 135mm
- Winding height HVC 36.5mm
- Winding material Aluminum
Magnet
- Force factor Bl 31N/A
- Motor constant Bl/√RE 13.6N/√W
- Air gap height HAG 12mm
- Material Neodymium
Diaphragm
- Effective diameter 460mm
- Effective area SD 1662cm²
- Moving mass (including air load) MMS 327g
- Moving mass MMD 280g
- Material Weather protected
Suspensions
- Stiffness KMS 12.2N/mm
- Compliance CMS 82µm/N
- Equivalent volume to the compliance VAS 325L
- Mechanical resistance RMS 13.6N·s/m
- Spider material Double Silicon
Dimensions
- Nominal diameter 21″
- 533mm
- Overall diameter 545mm
- Baffle cutout diameter 492mm
- Overall depth 251mm
- Flange thickness 22mm
- Mounting depth 229mm
- Volume occupied by the driver (estimated) 9.4L
- Net weight 14.0kg
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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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