Eminence DEFINIMAX 4018LF
8Ω
Subwoofer
| Nominal diameter | 18″ / 457 mm |
| Resonance | 30 Hz |
| Q factor | 0.34 |
| Sensitivity | 94.3 dB |
| Linear excursion | ± 8.6 mm |
| Program power | 2400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
- Frequency response 31 - 200Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 30Hz
- Mechanical quality factor QMS 11.95
- Electrical quality factor QES 0.35
- Total quality factor QTS 0.34
Large signal parameters
- Maximum linear excursion (one way) xmax 8.6mm
- Maximum excursion before damage xlim 15.9mm
- Air volume displaced at xmax VD 1018cm³
- Power handling P 1200W
- Program power Pmax 2400W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 6.1Ω
- Inductance (1kHz) LE 4.54mH
- VC Diameter 101.6mm
- Winding material Copper
- Former material Polyimide
Magnet
- Force factor Bl 26.8N/A
- Motor constant Bl/√RE 10.8N/√W
- Air gap height HAG 9.5mm
- Weight 3.09kg
- Material Ferrite
Diaphragm
- Effective diameter 389mm
- Effective area SD 1188cm²
- Moving mass (including air load) MMS 217g
- Moving mass MMD 189g
- Material Water resistant paper
Suspensions
- Stiffness KMS 7.69N/mm
- Compliance CMS 130µm/N
- Equivalent volume to the compliance VAS 255L
- Mechanical resistance RMS 3.42N·s/m
- Surround material Cloth
Dimensions
- Nominal diameter 18″
- 457mm
- Overall diameter 457mm
- Baffle cutout diameter 421mm
- Overall depth 207mm
- Volume occupied by the driver 6.63L
- Net weight 10.886kg
- Frame material Die-cast Aluminium
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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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